Ruben,
I did run it from the UBB control Panel.
I got a response from my Inmotion ticket as follows:
Imagick was not installed on your server. We have installed it for ... php 7.3, which is your current php version.
Huh?? How has it been working?
Anyway, the version says it's over 4 years old. I'm trying to get them to upgrade it thinking there may have been a maximum pixel limit (??)
What version is running here?