Hello @ivan-petro
Did you ignore the post install message?
It clearly states:
Do not install the agent deamon on a Cloudron itself.
also communicated in the announcement itself => https://forum.cloudron.io/post/108194
If you still insist on doing this.
There is a somewhat guide here: https://forum.cloudron.io/post/108240
Please read the topic carefully because assistance is not guaranteed when anything breaks, since Cloudron clearly states to not do this.