Asterisk 18 craches due memory allocation failure

Since two weeks, my asterisk VoIP server craches instantly. Below the error.
[May 6 15:38:48] ERROR[42046][C-0000001a]: astmm.c:1609 __ast_calloc: Memory Allocation Failure in function stasis_topic_create_with_detail at line 594 of stasis.c
voipsrv*CLI>
Somebody can help me to solve this problem plz?

What changed? That would be the easiest way to start identifying the cause. If it seems to be a memory leak, then the docs site has info[1] on what needs to be collected.

[1] Memory Leak Debugging - Asterisk Documentation

And is this just Asterisk, no FreePBX?

No just Asterisk that I used.