If you want any help for the plugin (Pixabay free images – 1.4 million public domain images) then let me know.
Except this for your current issue try some below things.
1 deactivat all plugina, activate twenty-twenty theme, enable debug log file, and check wp-admin screen.
If you get any errors then it means that the issue is with WordPress setup.
2. If there is now issue in WordPress set-up then try to activate theme, and other plugins one by one.
If somehow you found the issue with any theme or plugin then contact there support forum and provide them the steps to reproduce.
So this way the issue may fixed.
