Cannot enable safe mode elementor

Hello gentlemen

Thank you for your help in advance

This is questions about elementor plug in

I have a problem with
“The preview could not be loaded” so I checked out
So many trouble shootings about this and ppl
saying I should try edit page on safe mode but

I can’t even enable safe mode
Maybe this question sound bit weird but
Literally I cannot enable safe mode

I tried elementor > tools > safe mode > enable selection and save button then

“Cannot enable safe mode”

Also tried when I had error message of
“The preview could not be loaded”
There are message box shows up with
Enable safe mode button and click then

“An error occured”

This is what else I’ve tried before I leave this topic
Tried chrome , explorer cross checked
Uninstall , re-install elementor couple times
But still same problem occured

Please tell me what should I do to solve this problem

Thanks