[Samsung Galaxy Tab A series Questions & Answers] HarvHouHacker:
I am not able to update any apps, and the lag is driving me crazy. Here is the output of logcat related to "Finsky", or Google Play. This message keeps being repeated over and over.

07-31 13:01:24.389 2113 2113 I Finsky : [2] nnn.a(183): Installer: Notifying status update. package=com.artifexmundi.eventide2.gp.full, status=DOWNLOADING
07-31 13:01:24.394 2113 2192 I Finsky : [1951] oai.b(49): IQ: Notifying installation update. package=com.artifexmundi.eventide2.gp.full, status=DOWNLOADING
07-31 13:01:24.420 2113 2113 I Finsky : [2] dep.a(35): AU: Cannot update com.artifexmundi.eventide2.gp.full because it is not installed
07-31 13:01:24.503 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for amanita_design.samorost3.GP
07-31 13:01:24.503 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.sbysoft.perchecker
07-31 13:01:24.507 2113 2113 I Finsky : [2] dep.a(35): AU: Cannot update com.sbysoft.perchecker because it is not installed
07-31 13:01:24.508 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.giantssoftware.fs16
07-31 13:01:24.508 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.fchatnet.cleanmyphone
07-31 13:01:24.509 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.raultruji3d.ferris.wheel
07-31 13:01:24.510 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.teachyourmonstertoread.tmapp
07-31 13:01:24.511 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.noodlecake.drtc
07-31 13:01:24.512 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.google.android.webview
07-31 13:01:24.512 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.puzzlegame.puzzledom
07-31 13:01:24.513 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.sympleza.englishdictionarypremium
07-31 13:01:24.514 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for in.originaltrust.dangerouspermissionsdashboard
07-31 13:01:24.518 2113 2113 I Finsky : [2] dep.a(35): AU: Cannot update in.originaltrust.dangerouspermissionsdashboard because it is not installed
07-31 13:01:24.518 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for air.com.littlebigplay.games.free.wordsearchunlimited
07-31 13:01:24.519 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.artifexmundi.eventide2.gp.full
07-31 13:01:24.523 2113 2113 I Finsky : [2] dep.a(35): AU: Cannot update com.artifexmundi.eventide2.gp.full because it is not installed
07-31 13:01:24.524 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.ninjakiwi.monkeycity
07-31 13:01:24.524 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.mykapp.permissionviewer
07-31 13:01:26.403 2113 2113 I Finsky : [2] nnn.a(183): Installer: Notifying status update. package=com.artifexmundi.eventide2.gp.full, status=DOWNLOADING
07-31 13:01:26.409 2113 2192 I Finsky : [1951] oai.b(49): IQ: Notifying installation update. package=com.artifexmundi.eventide2.gp.full, status=DOWNLOADING
07-31 13:01:26.425 2113 2113 I Finsky : [2] dep.a(35): AU: Cannot update com.artifexmundi.eventide2.gp.full because it is not installed
07-31 13:01:26.524 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for amanita_design.samorost3.GP
07-31 13:01:26.525 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.sbysoft.perchecker
07-31 13:01:26.529 2113 2113 I Finsky : [2] dep.a(35): AU: Cannot update com.sbysoft.perchecker because it is not installed
07-31 13:01:26.529 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.giantssoftware.fs16
07-31 13:01:26.530 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.fchatnet.cleanmyphone
07-31 13:01:26.531 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.raultruji3d.ferris.wheel
07-31 13:01:26.532 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.teachyourmonstertoread.tmapp
07-31 13:01:26.532 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.noodlecake.drtc
07-31 13:01:26.533 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.google.android.webview
07-31 13:01:26.534 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.puzzlegame.puzzledom
07-31 13:01:26.534 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.sympleza.englishdictionarypremium
07-31 13:01:26.535 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for in.originaltrust.dangerouspermissionsdashboard
07-31 13:01:26.539 2113 2113 I Finsky : [2] dep.a(35): AU: Cannot update in.originaltrust.dangerouspermissionsdashboard because it is not installed
07-31 13:01:26.539 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for air.com.littlebigplay.games.free.wordsearchunlimited
07-31 13:01:26.540 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.artifexmundi.eventide2.gp.full
07-31 13:01:26.545 2113 2113 I Finsky : [2] dep.a(35): AU: Cannot update com.artifexmundi.eventide2.gp.full because it is not installed
07-31 13:01:26.546 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.ninjakiwi.monkeycity
07-31 13:01:26.546 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.mykapp.permissionviewer
07-31 13:01:28.418 2113 2113 I Finsky : [2] nnn.a(183): Installer: Notifying status update. package=com.artifexmundi.eventide2.gp.full, status=DOWNLOADING
07-31 13:01:28.423 2113 2192 I Finsky : [1951] oai.b(49): IQ: Notifying installation update. package=com.artifexmundi.eventide2.gp.full, status=DOWNLOADING
07-31 13:01:28.439 2113 2113 I Finsky : [2] dep.a(35): AU: Cannot update com.artifexmundi.eventide2.gp.full because it is not installed
07-31 13:01:28.511 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for amanita_design.samorost3.GP
07-31 13:01:28.512 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.sbysoft.perchecker
07-31 13:01:28.516 2113 2113 I Finsky : [2] dep.a(35): AU: Cannot update com.sbysoft.perchecker because it is not installed
07-31 13:01:28.516 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.giantssoftware.fs16
07-31 13:01:28.517 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.fchatnet.cleanmyphone
07-31 13:01:28.518 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.raultruji3d.ferris.wheel
07-31 13:01:28.518 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.teachyourmonstertoread.tmapp
07-31 13:01:28.519 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.noodlecake.drtc
07-31 13:01:28.520 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.google.android.webview
07-31 13:01:28.520 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.puzzlegame.puzzledom
07-31 13:01:28.521 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.sympleza.englishdictionarypremium
07-31 13:01:28.522 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for in.originaltrust.dangerouspermissionsdashboard
07-31 13:01:28.528 2113 2113 I Finsky : [2] dep.a(35): AU: Cannot update in.originaltrust.dangerouspermissionsdashboard because it is not installed
07-31 13:01:28.528 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for air.com.littlebigplay.games.free.wordsearchunlimited
07-31 13:01:28.529 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.artifexmundi.eventide2.gp.full
07-31 13:01:28.533 2113 2113 I Finsky : [2] dep.a(35): AU: Cannot update com.artifexmundi.eventide2.gp.full because it is not installed
07-31 13:01:28.534 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.ninjakiwi.monkeycity
07-31 13:01:28.534 2113 2113 W Finsky : [2] dep.b(7): No everExternallyHosted provided for com.mykapp.permissionviewer

These apps do exist on the device, and they are still able to be launched when we tap the icons in the app menu, but Google Play does not see them. How can this be fixed?

The last time this happened, I think I flashed the Stock ROM again to overwrite whatever was causing the problems without erasing user data. I've since forgotten how I did that.