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Cannot read property 'stopAnimation' of undefined

The Checker Plus for Gmail was not showing the number of unread emails. I've refreshed it but the error "Cannot read property 'stopAnimation' of undefined" is showing. This has been showing quite often now and I'm concerned if there are any bugs messing with the app and if this will affect the emails I've been receiving.

I just recently removed and re installed the app in Chrome. Also, I've cleared my browsing history for this to be fixed but it seems that this is still going on.

Please find a solution for this for assurance that everything is alright. Thank you.


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