dslr – Unusual message "err" from Nikon D7500

So, recently, I went to China with only a Nikon D7500 with a Tamron lens of 18-200 mm. I was filming then suddenly a message of error appeared! I could take photos, but my daytime shots were extremely bright in Aperture mode (the night shots are fine after changing the ISO), even with the stop indicator "0" in exposure correction.

In addition, this problem prevents me from using video mode and continuous shooting!

I've tried to clean the contacts of the lens, but to no avail …

Some images are still as blurry and brilliant (even with the correct exposure settings!) And after each trigger, the Err message appears!

I really need help with that 🙁