HPE 1820 errors Log

Hi

I am having extremely slow problems in my network, and I was able to follow on my HPE 1820 48 port switch, the Logs below:

USL returned -6 while modifying 01: 00: 5e: 7f: ff: fb vid 1.
USL returned -6 while modifying 01: 00: 5e: 7f: ff: fa vid 1.
USL returned -6 while adding 01: 00: 5e: 00: 01: 3c vid 1.

I have already done a thorough search on the internet and did not get any solution, my Switch is with the latest version available 02.10.