Usman Asar

Also mention which Server, O/S are you using?

Hello Mary, Thank you for response.

By Normal I meant (grey/visible) as you can see in background the cancel button is in grey color, but on every pop-up window, cancel button shows up in white, I have checked all settings, and no where background color is white. If it would have been then cancel buttons showing in background should have been white too, yet its in grey color. Also have tried changing button text color to black and this pop-up version doesn't get effected.

That is why asked here, as per Adaptable's team ask questions on this forum rather than on plug-in page.

Cheers!

Surely no harm giving a try.

but, do one thing, when building up quiz, rather than adding 1 question per page, add 3-4 at least, this way calls to database will be lesser and it will accommodate users easily.

also in PHP, OpCache settings, increase value of max_accelerated_files and memory_consumption.

sometimes, cache's get corrupted during upgrade/install, try deleting cache, localcache and temp folders from moodledata and reload page, those folders will re-appear automatically once you re-load page so dont worry deleting them.