Hey, Thank you I am now able to change the share!
Most of those problem where caused by non working apps wich I´m going to remove and I will check the other problem aswell!
The parity check was completed and I will run the non-correcting parity check.
My unRaid server is on an old HP Proliant Microserver(1st gen) and it only has USB 2.0
Thank you so much for your help, really appreciate it! hopefully everything should be working now