If you are absolutely sure that you have not been anywhere, even by car (eRouška could have been installed, for example, by the driver next to you in the traffic), first check that you have the current version installed. It may also be an e-Rouška error. Unfortunately, this cannot be completely prevented, as with any other app. But you are probably not the only one with this problem and you can contact the eRouška team at info@erouska.cz.