The website installed WPML freshly and got stuck at setup wizard at page 2. I chose Chinese (Traditional & Simplified) then press next, it didn't go through page 3 and page 2 pop-up again.
P.S. I used polylang before but just activated it without any serious work.
Is there any documentation that you are following?
I increased wordpress memory limit from 128mb to 256mb (max 768mb) in wp-content.
I tried to follow the warning with no success.
I tried to deactivate & reinstall WPML, no success.