[Geschlossen] Cannot access offset of type string on string /var/www/html/wp-content/plugins/amazon-s3-and-cloudfr...

Background of the issue:
I am trying to translate 2 of my pages but the translation is not being applied. I looked through the forum and found a post mentioning Advanced Translation Editor Error Logs so I went to check if I have any errors and it seems that Amazon S3 and Cloudfront Pro is causing an issue for a while now. I have updated all my plugins, including WPML to the latest version. I am not completely sure, but I think this is what is causing my translations not to be saved. Link to a page where the issue can be seen: versteckter Link
Also, I noticed that "Complete Translation" is finishing too fast, which makes me feel that it's like being abruptly stopped by an error, but still throws 200 (success)

Symptoms:
My translation is not saved, even though it shows that there are no changes. Then I check my Advanced Translation Editor Error Logs and I see

Cannot access offset of type string on string /var/www/html/wp-content/plugins/amazon-s3-and-cloudfront-pro/classes/pro/integrations/elementor.php:178

Questions:
Why are my translations not being saved?
Is the Amazon S3 and Cloudfront Pro plugin causing the issue? This actually doesn't happen in my dev and local environments.