failed to open data file poller may not have run yet nusaputramrtg.rrd (RRA Folder: ROOT)

[enggarukei]

Hello, can anyone help me for this problem. im installing until now not have any problems issue. but after i add devices and i want to graphs to test the interface in MikroTik the problem display this. after i see the log, this is display. can anyone help me. thnk u.

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2024-06-24 00:15:01 - ERROR PHP COMPILE_ERROR: Cannot redeclare cacti_snmp_session() (previously declared in /var/www/html/cacti/lib/snmp.php:56) in file: /usr/share/cacti/lib/snmp.php on line: 116

[macan]

Cacti version?
where is your cacti installed? Log message showes 2 different directory:
/var/www/html/cacti/
/usr/share/cacti/

Show your cacti log