OpenWRT Security Advisories bridge returns "Call to a member function find() on null" error

[virtadpt]

Describe the bug The OpenWRT Security Advisories bridge only returns errors and a stack trace when my feed reader pulls that ATOM feed. The error response is:

Type: Error
Code: 0
Message: Call to a member function find() on null
File: bridges/OpenwrtSecurityBridge.php
Line: 19

The stack trace is:

#0 index.php(73): RssBridge->main()
#1 lib/RssBridge.php(39): RssBridge->{closure}()
#2 lib/RssBridge.php(37): CacheMiddleware->__invoke()
#3 middlewares/CacheMiddleware.php(44): RssBridge->{closure}()
#4 lib/RssBridge.php(37): ExceptionMiddleware->__invoke()
#5 middlewares/ExceptionMiddleware.php(17): RssBridge->{closure}()
#6 lib/RssBridge.php(37): SecurityMiddleware->__invoke()
#7 middlewares/SecurityMiddleware.php(19): RssBridge->{closure}()
#8 lib/RssBridge.php(37): MaintenanceMiddleware->__invoke()
#9 middlewares/MaintenanceMiddleware.php(10): RssBridge->{closure}()
#10 lib/RssBridge.php(37): BasicAuthMiddleware->__invoke()
#11 middlewares/BasicAuthMiddleware.php(13): RssBridge->{closure}()
#12 lib/RssBridge.php(37): TokenAuthenticationMiddleware->__invoke()
#13 middlewares/TokenAuthenticationMiddleware.php(10): RssBridge->{closure}()
#14 lib/RssBridge.php(34): DisplayAction->__invoke()
#15 actions/DisplayAction.php(54): DisplayAction->createResponse()
#16 actions/DisplayAction.php(89): OpenwrtSecurityBridge->collectData()
#17 bridges/OpenwrtSecurityBridge.php(19) 

To Reproduce Steps to reproduce the behavior:

1. Go to an up-to-date install of RSS-Bridge.
2. Search the install for "openwrt". It should only display the OpenWRT Security Advisories box.
3. Click on "Show more."
4. Click on "Generate feed."

Expected behavior You should see the latest security advisories for OpenWRT displayed in a fashion appropriate for the option (an HTML page, an XML document, JSON, and so forth).

Screenshots My instance is public, so here are URLs for reproducing the issue first-hand:

• https://feeds.drwho.virtadpt.net/?action=display&bridge=OpenwrtSecurityBridge&format=Html
• https://feeds.drwho.virtadpt.net/?action=display&bridge=OpenwrtSecurityBridge&format=Atom

Additional context Feed reader: Huginn commit 1e0c359a46b1e84eb8c658404212eaf693b30e61.

I get the same errors when I open this particular bridge in Librewolf 1:138.0.4_1-1 (64-bit) running on Arch Linux.

Version of RSS-Bridge: Commit b8064d9dfe210cc20fad303222e104460413071d (updated daily at 0000 hours by a cronjob)

Are other feeds generated by this install working? Yes, I get new entries in my morning e-mail and I just finished reading all of it. This particular feed has worked for me in the past because I use it to keep abreast of things in my network at home.

My hosting provider is running Linux and PHP v8.2.28.

[tillcash]

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