Problem
You may face this Nagvis issue after a Checkmk update/upgrade
[Wed Nov 23 14:14:05.404754 2022] [fcgid:warn] [pid 18185] [client 127.0.0.1:44696] mod_fcgid: stderr: PHP Fatal error: Arrays are not allowed as constants in /opt/omd/versions/2.1.0p15.cee/share/nagvis/htdocs/server/core/sources/geomap.php on line 9
Solution
Please check first which php version Nagvis is using:
Open Nagvis → Need Help → Nagvis Support Information
If your php version is lower than php7, please update to at least php7
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