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I found the problem: your plugin “Instant Indexing” has incompatibility with the “Pixel Caffeine” plugin.
The problem is in “guzzlehttp“, see error log:
[11-Mar-2021 01:23:37 UTC] PHP Fatal error: Uncaught Error: Undefined class constant ‘MAJOR_VERSION’ in /wp-content/plugins/pixel-caffeine/vendor/guzzlehttp/guzzle/src/Utils.php:118
Stack trace:
#0 /wp-content/plugins/pixel-caffeine/vendor/guzzlehttp/guzzle/src/functions.php(71): GuzzleHttp\Utils::defaultUserAgent()
#1 /wp-content/plugins/fast-indexing-api/vendor/guzzlehttp/guzzle/src/Client.php(194): GuzzleHttp\default_user_agent()
#2 /wp-content/plugins/fast-indexing-api/vendor/guzzlehttp/guzzle/src/Client.php(75): GuzzleHttp\Client->configureDefaults(Array)
#3 /wp-content/plugins/fast-indexing-api/vendor/google/apiclient/src/Google/Client.php(1068): GuzzleHttp\Client->__construct(Array)
#4 / in /wp-content/plugins/pixel-caffeine/vendor/guzzlehttp/guzzle/src/Utils.php on line 118May you fix this? Thank you
The ticket ‘Google Indexing Api “Error undefined” (raw: 500 “Internal Server Error”)’ is closed to new replies.