[BUGFIX] Use proper array for fetching external manual

.ddev/config.yaml

@@ -3,7 +3,7 @@ type: typo3
 docroot: public
 php_version: "7.2"
 webserver_type: nginx-fpm
-router_http_port: "80"
+router_http_port: "8080"
 router_https_port: "443"
 xdebug_enabled: false
 additional_hostnames: []
@@ -126,7 +126,7 @@ timezone: Europe/Berlin
 # phpmyadmin_https_port: "8037"
 # The PHPMyAdmin ports can be changed from the default 8036 and 8037
 
-# mailhog_port: "8025"
+mailhog_port: "10025"
 # mailhog_https_port: "8026"
 # The MailHog ports can be changed from the default 8025 and 8026
 

extensions/ter_fe2/Classes/Domain/Repository/CombinedExtensionRepository.php

@@ -59,7 +59,7 @@ class CombinedExtensionRepository
             $basicExtensionInformation[$extensionKey] = [
                 'ownerusername' => $extensionKeyRow['frontend_user'],
                 'downloads' => $extensionKeyRow['downloads'],
-                'external_manual' => $extensionKey['external_manual'] ?: ''
+                'external_manual' => $extensionKeyRow['external_manual'] ?: ''
             ];
         }
         return $basicExtensionInformation;