[horde] portal white page

[Andreas Mauser]

Am 16. Januar 2026 um 19:56 schrieb "Andreas Mauser" <andreas at mauser.info mailto:andreas at mauser.info?to=%22Andreas%20Mauser%22%20%3Candreas%40mauser.info%3E >:


> 
> -- sendinig again as of dmarc problems --
> 
> Hello,
> 
> anyone who can guide me where to search for the "portal white page" I experience?
> 
> It doesnt matter if I set portal blocks or not, it just doesnt come up.
> 
> Horde is installed with composer and updated 2 days ago to latest version. It didnt work before either.


I get this in the log, when click on portal ,after enabled debug:

2026-01-17T18:54:07.154511+01:00 wm HORDE: [kronolith] Horde_Prefs: Storing preference value (display_external_cals) [pid 143558 on line 538 of "/var/www/html/wm/vendor/horde/kronolith/lib/CalendarsManager.php"]
2026-01-17T18:54:07.165115+01:00 wm HORDE: [kronolith] Horde_Prefs: Storing preference value (display_remote_cals) [pid 143558 on line 621 of "/var/www/html/wm/vendor/horde/kronolith/lib/CalendarsManager.php"]
2026-01-17T18:54:07.165389+01:00 wm HORDE: [kronolith] Horde_Prefs: Storing preference value (holiday_drivers) [pid 143558 on line 580 of "/var/www/html/wm/vendor/horde/kronolith/lib/CalendarsManager.php"]
2026-01-17T18:54:07.167047+01:00 wm HORDE: [kronolith] PHP ERROR: substr(): Passing null to parameter #1 ($string) of type string is deprecated [pid 143558 on line 276 of "/var/www/html/wm/vendor/horde/util/lib/Horde/String.php"]
2026-01-17T18:54:07.167206+01:00 wm HORDE:  1. Horde_Core_Block_Layout_View->toHtml() /var/www/html/wm/vendor/horde/horde/services/portal/index.php:36
2026-01-17T18:54:07.167376+01:00 wm HORDE:  2. Horde_Core_Block->getTitle() /var/www/html/wm/vendor/horde/core/lib/Horde/Core/Block/Layout/View.php:100
2026-01-17T18:54:07.167486+01:00 wm HORDE:  3. Horde_Core_Block->_call() /var/www/html/wm/vendor/horde/core/lib/Horde/Core/Block.php:152
2026-01-17T18:54:07.167603+01:00 wm HORDE:  4. Kronolith_Block_Month->_title() /var/www/html/wm/vendor/horde/core/lib/Horde/Core/Block.php:279
2026-01-17T18:54:07.167726+01:00 wm HORDE:  5. Horde_Registry->getInitialPage() /var/www/html/wm/vendor/horde/kronolith/lib/Block/Month.php:42
2026-01-17T18:54:07.167930+01:00 wm HORDE:  6. Horde_Registry->callAppMethod() /var/www/html/wm/vendor/horde/core/lib/Horde/Registry.php:2101
2026-01-17T18:54:07.168056+01:00 wm HORDE:  7. Horde_Registry->getApiInstance() /var/www/html/wm/vendor/horde/core/lib/Horde/Registry.php:1201
2026-01-17T18:54:07.168097+01:00 wm HORDE:  8. Horde_String::ucfirst() /var/www/html/wm/vendor/horde/core/lib/Horde/Registry.php:856
2026-01-17T18:54:07.168198+01:00 wm HORDE:  9. substr() /var/www/html/wm/vendor/horde/util/lib/Horde/String.php:276
2026-01-17T18:54:07.168243+01:00 wm HORDE: 10. Horde_ErrorHandler::errorHandler()
2026-01-17T18:54:07.168298+01:00 wm HORDE: 
2026-01-17T18:54:07.168396+01:00 wm HORDE: [kronolith] PHP ERROR: substr(): Passing null to parameter #1 ($string) of type string is deprecated [pid 143558 on line 276 of "/var/www/html/wm/vendor/horde/util/lib/Horde/String.php"]
2026-01-17T18:54:07.168724+01:00 wm HORDE:  1. Horde_Core_Block_Layout_View->toHtml() /var/www/html/wm/vendor/horde/horde/services/portal/index.php:36
2026-01-17T18:54:07.168835+01:00 wm HORDE:  2. Horde_Core_Block->getTitle() /var/www/html/wm/vendor/horde/core/lib/Horde/Core/Block/Layout/View.php:100
2026-01-17T18:54:07.168944+01:00 wm HORDE:  3. Horde_Core_Block->_call() /var/www/html/wm/vendor/horde/core/lib/Horde/Core/Block.php:152
2026-01-17T18:54:07.169130+01:00 wm HORDE:  4. Kronolith_Block_Month->_title() /var/www/html/wm/vendor/horde/core/lib/Horde/Core/Block.php:279
2026-01-17T18:54:07.169317+01:00 wm HORDE:  5. Horde_Registry->getInitialPage() /var/www/html/wm/vendor/horde/kronolith/lib/Block/Month.php:42
2026-01-17T18:54:07.169522+01:00 wm HORDE:  6. Horde_Registry->callAppMethod() /var/www/html/wm/vendor/horde/core/lib/Horde/Registry.php:2101
2026-01-17T18:54:07.169686+01:00 wm HORDE:  7. Horde_Registry->getApiInstance() /var/www/html/wm/vendor/horde/core/lib/Horde/Registry.php:1201
2026-01-17T18:54:07.169827+01:00 wm HORDE:  8. Horde_String::ucfirst() /var/www/html/wm/vendor/horde/core/lib/Horde/Registry.php:856
2026-01-17T18:54:07.169950+01:00 wm HORDE:  9. substr() /var/www/html/wm/vendor/horde/util/lib/Horde/String.php:276
2026-01-17T18:54:07.170072+01:00 wm HORDE: 10. Horde_ErrorHandler::errorHandler()
2026-01-17T18:54:07.170217+01:00 wm HORDE: 
2026-01-17T18:54:07.170353+01:00 wm HORDE: [kronolith] Max memory usage: 2097152 bytes [pid 143558 on line 619 of "/var/www/html/wm/vendor/horde/core/lib/Horde/Registry.php"]



> Many thanks,
> Andreas
> 
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Mit freundlichen Grüßen,
Andreas Mauser
+49 160 551 1166
Frankfurt am Main