New bug on Paper 1.12.2

The bug is related to the fishing rod and the ender portal, when I throw the hook from the fishing rod into the ender portal, it gives this error to the console:
https://justpaste.it/4fjud

1.12.2 is entirely unsupported. Please update to 1.16.5 if you wish to receive support.

1 Like

This bug is also present in 1.16.5

please open an issue on github then, with a 1.16 log