Reads like malware, but malware I am not knowledgeable about clearing.

Plesk was a valid linux website,
but a search indicates it may have been attacked and hacked in December 2023.

On the small screen of an Android cell phone
I have found that
“Samsung Internet Browser” with the Adblock plug in
works better than Chrome Browser with Adblock plug in
for Moparts.

On iOS the Brave Browser with its built-in ad blocking seems to work best on Moparts, and seems way better than Safari.