my server keep crashing when i make aether portal

[URGaming123]

i make the shape then put weather in it and it crashes my server and also here is the line of my server ending

[22:44:10 INFO]: Saving players [22:44:10 INFO]: URGaming lost connection: Server closed [22:44:10 INFO]: URGaming left the game. [22:44:10 INFO]: Saving worlds [22:44:10 INFO]: Saving chunks for level 'world'/Overworld [22:44:10 INFO]: Saving chunks for level 'DIM4'/Dungeons [22:44:10 INFO]: Saving chunks for level 'DIM3'/Aether [22:44:10 INFO]: Saving chunks for level 'DIM1'/The End [22:44:10 INFO]: Saving chunks for level 'DIM-1'/Nether [22:44:10 INFO]: Saving chunks for level 'DIM-30'/Asteroids [22:44:10 INFO]: Saving chunks for level 'DIM-29'/Mars [22:44:10 INFO]: Saving chunks for level 'DIM-28'/Moon [22:44:10 INFO]: World unloaded; killing web views... [22:44:10 INFO]: World unloaded; killing web views... [22:44:10 INFO]: World unloaded; killing web views... [22:44:10 INFO]: World unloaded; killing web views... [22:44:10 INFO]: World unloaded; killing web views... [22:44:10 INFO]: World unloaded; killing web views... [22:44:10 INFO]: World unloaded; killing web views... [22:44:10 INFO]: World unloaded; killing web views... [22:44:10 INFO]: Unloading dimension 0 [22:44:10 INFO]: Unloading dimension -1 [22:44:10 INFO]: Unloading dimension 1 [22:44:10 INFO]: Unloading dimension -28 [22:44:10 INFO]: Unloading dimension -29 [22:44:10 INFO]: Unloading dimension -30 [22:44:10 INFO]: Unloading dimension 4 [22:44:10 INFO]: Unloading dimension 3 [22:44:10 INFO]: Applying holder lookups [22:44:10 INFO]: Holder lookups applied [22:44:10 INFO]: Unregistered Dimension: -30 [22:44:10 INFO]: Unregistered Dimension: -29 [22:44:10 INFO]: Unregistered Dimension: -28 [22:44:10 INFO]: The state engine was in incorrect state SERVER_STOPPING and forced into state SERVER_STOPPED. Errors may have been discarded.

[URGaming123]

i hope somebody can help me with this