Pamac can't install AUR packages

[Wollie]

Maybe you are affected by what is mentioned here:

AUR repositories are not shown although they are allowed in Add/Remove Software

As @Yochanan mentioned your are blocked from accessing the AUR at the moment. There is a limit of 4000 requests to the API per day and IP-Address. Not sure how you reached that limit though. Either something is running on your machine is that querying those API’s like crazy or you use an internet connection shared by a lot of people (that use the AUR too). You either need to wait for a day or access it from another IP-Address.

AUR repositories are not shown although they are allowed in Add/Remove Software

Currently Pamac is blocked to use the AUR! However this might not the issue you faced 7 days ago.