Since an hour my collection pages show the error There was an error in the third-party application.
In the meantime I added Ideal (by mollie), added the APP auto currency selecter and started of with the setup of my Google analytics"
I already disabled Mollie and the auto currency selecter, but i can't figure out how to get my collection page back.
Solved! Go to the solution
What is your site url?
The error comes from an internal server error that I will not be able to troubleshoot on my side.
So you will have to troubleshoot it on your end or get a developer to figure it out.
Though the first place I would start for this scenario is to make sure that those apps did not install anything in your theme collections.liquid or list-collections.liquid file.
You should be able to roll back to an older version of your theme.
Give that a test first.