@Anh Tran
uploaded manually MetaBox AIO with FileZilla to 1 website, now it works again, thankfully.
BUT, there is a huuuge BUT:
Uploading to each website takes 5 minutes
With 12 websites, it takes 60 minutes of work, due to your inproper testing before launching.
Who pays me now the 150 EUR per hour? you?
Each in every user is affected by your mistake.
So please take care in future updates and make FULL and proper quality testing BEFORE launching.
Otherwise, next time, I will send you an invoice for the appropriate amout of time.
Thanx.
.
