Hi I keep getting this error please help

xxx.xxx.xxx.xxx - the clients public IP address.

xxx.xxx.xxx.xxx:34872 DECRYPT FROM: 00000001 60df0b51 51bcd777 ca6a680c 860c5c81 008e4efc 55c7ba08 86e2f74[more…] xxx.xxx.xxx.xxx:34872 Authenticate/Decrypt packet error: packet HMAC authentication failed xxx.xxx.xxx.xxx:34872 TLS Error: incoming packet authentication failed from [AF_INET]xxx.xxx.xxx.xxx:34872 xxx.xxx.xxx.xxx:34872 TLS: tls_multi_process: i=0 state=S_PRE_START, mysid=8b3702c5 efbc1580, stored-sid=00000000 00000000, stored-ip=[AF_INET]xxx.xxx.xxx.xxx:34872 xxx.xxx.xxx.xxx:34872 TLS: tls_process: chg=0 ks=S_PRE_START lame=S_UNDEF to_link->len=0 wakeup=604800 xxx.xxx.xxx.xxx:34872 ACK reliable_can_send active=1 current=1 : [1] 0 xxx.xxx.xxx.xxx:34872 ACK reliable_send_timeout 0 [1] 0 xxx.xxx.xxx.xxx:34872 TLS: tls_process: timeout set to 1 xxx.xxx.xxx.xxx:34872 TLS: tls_multi_process: i=1 state=S_INITIAL, mysid=1f9a0ded f8c32c9f, stored-sid=00000000 00000000, stored-ip=[AF_UNSPEC] xxx.xxx.xxx.xxx:34872 TLS: tls_multi_process: i=2 state=S_UNDEF, mysid=00000000 00000000, stored-sid=00000000 00000000, stored-ip=[AF_UNSPEC] xxx.xxx.xxx.xxx:34872 Fatal TLS error (check_tls_errors_co), restarting xxx.xxx.xxx.xxx:34872 SIGUSR1[soft,tls-error] received, client-instance restarting