Hi everyone,
I've got some problems with my admin pages, everytime when I click on Cart or Example product page, the message - "There is an error" comes up, and the page wouldn't show. I didn't write the code myself and I've never experienced this before, so any suggestion on where I should start to tackle the problem would be appreciated.
I can copy some code here if you can tell me which part. I have attached my admin page image, as you can see page Cart and example product's icons are different from the rest.
Thank you very much for your time.
Regards
Sam