deleting pictures in portfolio error

Good afternoon, tell me. When deleting pictures in a portfolio, the error pops up on all devices (computer, laptop, tablet). It turns out to quickly delete about 8 pictures, and then an error pops up. (it was not possible to delete a job with a red exclamation mark) If you delete with a pause of 15 seconds, then the error will not come out. Cookies and Cash cleaning does not help