Nokia 5G | 4G is unable to bring up X2 SCTP

Hello Everyone!

We are trying to bring up one Nokia 5G Radio Node. But the problem is that when Nokia 4G site is sending Init Message to 5G site to bring up X2 SCTP, Nokia 5G will send an abort message. We are unable to figure out what is missing. Has anyone faced this issue? Or have any ideas to fix this. Below is screenshot to explain the issue.