For now, you can only search the textbase if you don't use that box. The field searched by the box where you typed the comparison search doesn't have Term index. Solution Change your search so it doesn't use any of the comparison operators. If you're searching for text which includes any of these symbols, enclose the search text in quotes or replace the symbol with a space. You can also contact the webmaster for the site where this textbase resides and ask them to use Edit Textbase Structure to add a Term index to the field.
Proximity searches require a word index.
Then change your search so it doesn't do a proximity search in that QBE box. Incorrect password entered. You typed a password which is not in use for this textbase. Solution Return to the search screen and type a valid password. The textbase may have a Silent password.