Thank you for your reply. This problem has been plagued by problems for a long time. I hope I can improve it.
Previous versions of JAVA and GalacticraftCore-1.12.2-4.0.1.128, Galacticraft-Planets-1.12.2-4.0.1.128, MicdoodleCore-1.12.2-4.0.1.128, and forge-1.12.2-14.23.1.2606-universal, They operate fairly stable.
After I updated JAVA8.171, the server crashed and exited.
Later, I tried to update forge to 2655 and 2676. After Galacticraft was updated to 174 and 175, the server continued to crash and exit.
Thank you for your help