[Newbie]

Habe seit dem Umstieg auf PHP 8.3 Warnungen im Fehlerlog bei dem Kalendar. Ich weiß, dass Warnungen keine Fehler sind, aber es "spamt" doch den Fehlerlog voll und ich verändere ungern Core-Dateien. Sind denn diese Warnungen schon bekannt?

PHP-Code:

<error>
<dateline>1702119189</dateline>
<script>inc/functions_calendar.php</script>
<line>244</line>
<type>2</type>
<friendly_type>Warning</friendly_type>
<message>Undefined array key 4</message>
<back_trace>#0  errorHandler->error() called at [/inc/class_error.php:153]
#1  errorHandler->error_callback() called at [/inc/functions_calendar.php:244]
#2  get_calendar_permissions() called at [/calendar.php:2309]
</back_trace>
</error>

<error>
<dateline>1702119189</dateline>
<script>inc/functions_calendar.php</script>
<line>313</line>
<type>2</type>
<friendly_type>Warning</friendly_type>
<message>Undefined array key "canviewcalendar"</message>
<back_trace>#0  errorHandler->error() called at [/inc/class_error.php:153]
#1  errorHandler->error_callback() called at [/inc/functions_calendar.php:313]
#2  fetch_calendar_permissions() called at [/inc/functions_calendar.php:262]
#3  get_calendar_permissions() called at [/calendar.php:2309]
</back_trace>
</error>

<error>
<dateline>1702119189</dateline>
<script>inc/functions_calendar.php</script>
<line>313</line>
<type>2</type>
<friendly_type>Warning</friendly_type>
<message>Undefined array key "canaddevents"</message>
<back_trace>#0  errorHandler->error() called at [/inc/class_error.php:153]
#1  errorHandler->error_callback() called at [/inc/functions_calendar.php:313]
#2  fetch_calendar_permissions() called at [/inc/functions_calendar.php:262]
#3  get_calendar_permissions() called at [/calendar.php:2309]
</back_trace>
</error>

<error>
<dateline>1702119189</dateline>
<script>inc/functions_calendar.php</script>
<line>313</line>
<type>2</type>
<friendly_type>Warning</friendly_type>
<message>Undefined array key "canbypasseventmod"</message>
<back_trace>#0  errorHandler->error() called at [/inc/class_error.php:153]
#1  errorHandler->error_callback() called at [/inc/functions_calendar.php:313]
#2  fetch_calendar_permissions() called at [/inc/functions_calendar.php:262]
#3  get_calendar_permissions() called at [/calendar.php:2309]
</back_trace>
</error>

<error>
<dateline>1702119189</dateline>
<script>inc/functions_calendar.php</script>
<line>313</line>
<type>2</type>
<friendly_type>Warning</friendly_type>
<message>Undefined array key "canmoderateevents"</message>
<back_trace>#0  errorHandler->error() called at [/inc/class_error.php:153]
#1  errorHandler->error_callback() called at [/inc/functions_calendar.php:313]
#2  fetch_calendar_permissions() called at [/inc/functions_calendar.php:262]
#3  get_calendar_permissions() called at [/calendar.php:2309]
</back_trace>
</error>

<error>
<dateline>1702119189</dateline>
<script>inc/functions_calendar.php</script>
<line>313</line>
<type>2</type>
<friendly_type>Warning</friendly_type>
<message>Undefined array key "cid"</message>
<back_trace>#0  errorHandler->error() called at [/inc/class_error.php:153]
#1  errorHandler->error_callback() called at [/inc/functions_calendar.php:313]
#2  fetch_calendar_permissions() called at [/inc/functions_calendar.php:262]
#3  get_calendar_permissions() called at [/calendar.php:2309]
</back_trace>
</error>

<error>
<dateline>1702119189</dateline>
<script>inc/functions_calendar.php</script>
<line>313</line>
<type>2</type>
<friendly_type>Warning</friendly_type>
<message>Undefined array key "gid"</message>
<back_trace>#0  errorHandler->error() called at [/inc/class_error.php:153]
#1  errorHandler->error_callback() called at [/inc/functions_calendar.php:313]
#2  fetch_calendar_permissions() called at [/inc/functions_calendar.php:262]
#3  get_calendar_permissions() called at [/calendar.php:2309]
</back_trace>
</error>

<error>
<dateline>1702119189</dateline>
<script>inc/functions_calendar.php</script>
<line>308</line>
<type>2</type>
<friendly_type>Warning</friendly_type>
<message>Undefined array key 3</message>
<back_trace>#0  errorHandler->error() called at [/inc/class_error.php:153]
#1  errorHandler->error_callback() called at [/inc/functions_calendar.php:308]
#2  fetch_calendar_permissions() called at [/inc/functions_calendar.php:262]
#3  get_calendar_permissions() called at [/calendar.php:2309]
</back_trace>
</error>

<error>
<dateline>1702119189</dateline>
<script>inc/functions_calendar.php</script>
<line>308</line>
<type>2</type>
<friendly_type>Warning</friendly_type>
<message>Undefined array key 6</message>
<back_trace>#0  errorHandler->error() called at [/inc/class_error.php:153]
#1  errorHandler->error_callback() called at [/inc/functions_calendar.php:308]
#2  fetch_calendar_permissions() called at [/inc/functions_calendar.php:262]
#3  get_calendar_permissions() called at [/calendar.php:2309]
</back_trace>
</error>

<error>
<dateline>1702119189</dateline>
<script>inc/functions_calendar.php</script>
<line>308</line>
<type>2</type>
<friendly_type>Warning</friendly_type>
<message>Undefined array key 8</message>
<back_trace>#0  errorHandler->error() called at [/inc/class_error.php:153]
#1  errorHandler->error_callback() called at [/inc/functions_calendar.php:308]
#2  fetch_calendar_permissions() called at [/inc/functions_calendar.php:262]
#3  get_calendar_permissions() called at [/calendar.php:2309]
</back_trace>
</error>