Join request cannot be sent/appeared in owner's control center after denied access once

My host accidentally rejected the join request for my address once and he is not able to see any of my join requests even if I forget the network, restarted the computer, un/installed zerotier several times, and joined the network again. Access_Denied immediately. Please help.

The administrator must undelete your node by manually readding your node identifier in the advanced section of the network at ZeroTier Central: