VPN IPsec site to site between Sophos and Seqrite UTM

I have created VPN IP Sec between Sophos xg136 and Seqrite Terminator UTM

after some time vpn auto disconnted and send below log error. And  manually have to conect.

Couldn't parse IKE message from 47.X.X.X[38049]. Check the debug logs.

Traffic selectors don't match. Check the configured local and remote subnets on both devices: 192.168.5.0/24 === 192.168.0.0/22

U_74_P-1 - IPSec Connection U_74_P-1 between 122.160.60.113 X.X.X and 192.168.87.100 for Child U_74_P-1 established. (Remote: 122.X.X.X)

Regards

Sunit