The fact that the metadata of a file cannot be seen in Photoshop Elements 2019 editor - "Der Befehl "Dateiinformationen" konnte nicht ausgeführt werden, weil die Metadatenbibliothek nicht geladen werden konnte" ("metadata library could not be loaded") - has already been described by others around more that 2 years ago - without any solution - of course also no solution from Adobe! I wonder where is the support of Adobe that is written in big letters on its internet site. In any way, I could not find any direct contact possibility on the internet site of Adobe. Even, there is a button "contact" that leads to another of many annoying loops of FAQs etc. but no direct contact. If someone knows a direct contact adress, please tell me.
Besides this complaint, that hopefully is seen by someone of Adobe, can anybody solve the problem?
I'm sorry but Adobe will not provide support for Elements 2019. They only provide support for the two most recent versions (Elements 2021 and 2022).
It's not clear how you are reaching the error message. Can you please provide a step by step description of what you are doing and when the error message pops up. Did the program work as you expected before? If so, try resetting the preferences file. Go to Edit>Preferences>General tab and click the Reset Preferences on next launch button. This will put the program back in its original condition.