Create a file named .version inside your project folder and make it writable. This problem means that your nginx/apache doesn't have the rights to create this file.
eg:
cd /var/www/l2jmobius-acm
touch .version
chmod 777 .version
UPDATE: I added a task manager that allows administrators to handle some in-game tasks from the ACM. You can kick/jail/chatban, etc players, shutdown/restart the server or make an announcement. Check this for more information: https://gitlab.com/nick_anto/l2jmobius-acm/-/blob/main/docs/task-manager.md?ref_type=heads. It requires a Java implementation too. I have added the java file that you need to insert. It could work for any Chronicle, but it certainly works for CT_0 Interlude. If someone finds any issue with later Chronicles, send me a message and I will try to adapt it.
Everything is fine, after making the changes it worked. Many thanks for the help.
Tested the new Task Manager, everything works fine on The Source Of Flame, rebooting the server, Announcements and sending items to all players work.
There are several suggestions. They are very important for the game.
If it is possible to implement the destruction of an item with an ID for all players, then this will be a very useful function.
Thank you very much for this Control Panel. Good luck in work and in life.