[مغلق] dashboard extremely slow after updating

Background of the issue:
I am trying to do anything on my WordPress dashboard, but it is extremely slow after updating WPML. Here is the link to a page where the issue can be seen: الرابط المخفي.

Symptoms:
The dashboard is extremely slow, making it impossible to edit, add, delete, or translate anything. I expected to be able to work on my dashboard, but I cannot do anything.

Questions:
Why is the dashboard extremely slow after updating WPML?
How can I resolve the issue to work on my dashboard effectively?