I checked configuration and log files, it looks like you set up PlayTime for 180 seconds (3 minutes) and PlayTime notification is set for 180 seconds (3 minutes) too.
Timekpr will not show PlayTime notifications at 1 minute mark, because there is no notification set up at that time.
Please change PlayTime notification configuration in "icon" (also called client application) to 45 seconds or 1:30 minute or 1 minute and retry the test.
Also, please enable logging level in "icon" to 2 and get client log file too. After the test, if it still did not work, please gather the same log files you already did as well as client log file /tmp/timekprc.*.log and add to this bug report.
If all went well, please reduce logging to lvl 1 in both, admin app and client app, that should help with whatever storage you have in RPi.
I checked configuration and log files, it looks like you set up PlayTime for 180 seconds (3 minutes) and PlayTime notification is set for 180 seconds (3 minutes) too.
Timekpr will not show PlayTime notifications at 1 minute mark, because there is no notification set up at that time.
Please change PlayTime notification configuration in "icon" (also called client application) to 45 seconds or 1:30 minute or 1 minute and retry the test.
Also, please enable logging level in "icon" to 2 and get client log file too. After the test, if it still did not work, please gather the same log files you already did as well as client log file /tmp/timekprc.*.log and add to this bug report.
If all went well, please reduce logging to lvl 1 in both, admin app and client app, that should help with whatever storage you have in RPi.