Hi @underlyne
At first, thank you for choosing our theme and service.
- The reason for the issue can be your installed plugins, please deactivate them one by one and you will able to catch the which one was the source for the issue.
- If you want to not lose all the changes made with the plugins, please install 3rd party plugin staging, clone your website database and make the changes on the cloned staging site, here is the video guide to better understand how it works: https://www.youtube.com/watch?v=YtY-q5BBpeE
- If the instructions above cant help, please let us know we will do our best to help you fix the issue.
Kind Regards