magento2 – Magento 2.2.5 disconnect me from the back-end

I disconnect when I try to work in the backend and I do not connect from other devices! I tried to look at the problem with "inspect" and found this error. And just after showing this error, I disconnected.
NB! Sometimes the inspector shows nothing! and I disconnected!
Please, look at the pictureenter the description of the image here