Play store detects an app Installed but it isn't. I can't install any apps.

Hey,

I have a Motorolo Moto E 2nd generation device.
I had to reset my phone because it stucked in a boot loop. It was rooted and I have TWRP installed.
After the reset the Play Store detects my Uninstalled apps as Installed.
So I'm unable to install any app (the Play Store neither).

If I try to install an app from the store, then this message pops up:
".. will be installed on your device soon"
But not really....

I think that it's possible from the Play app to delete an app, but I'm unable to install the Google Play app (because the Play thinks it's already Installed). And from the Play website you can't delete any app.

Could somebody help me?

Thanks