error after upgrade from php 7 to php 8.0.13

A

Anonymous

Guest
after the system upgrade, the following started appearing in the cacti log:

Code:
CMDPHP PHP ERROR WARNING Backtrace:   (/cmd_realtime.php[201]:cacti_snmp_session_get(),  /lib/snmp.php[492]:SNMP->get(), CactiErrorHandler())
--
ERROR PHP WARNING: SNMP::get(): Fatal error:  USM generic error in file: /usr/share/cacti/lib/snmp.php  on line: 49

what needs to be done?
 
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