Error[2279]

I have upgraded my distro to 5.211.65 v19 like 1 night ago and today, I got this message and asterisk has stopped working. I googled the message but not much help pop up.

ERROR[2279]: /builddir/build/BUILD/asterisk-11.13.0/include/asterisk/utils.h:533 _ast_calloc: Memory Allocation Failure in function internal_ao2_alloc at line 571 of astobj2.c

I also has this php warning after upgrading the distro.

PHP Warning: PHP Startup: Unable to load dynamic library ‘/usr/lib/php/modules/apc.so’ - /usr/lib/php/modules/apc.so: undefined symbol: pcre_exec in Unknown on line 0

any hint please?

ERROR[25673][C-00005665]: /builddir/build/BUILD/asterisk-11.13.0/include/asterisk/utils.h:533 _ast_calloc: Memory Allocation Failure in function internal_ao2_alloc at line 571 of astobj2.c

I just happened again and had to restart the asterisk