Error in composer.json
The autoload cannot find the classes in the extension.
If I change the current composer.json file as below, then it works for me.
From:
"autoload": { "psr-4": { "SpoonerWeb\BeSecurePw\": "htdocs/typo3conf/ext/be_secure_pw/Classes/" } }
to:
"autoload": { "psr-4": { "SpoonerWeb\BeSecurePw\": "Classes/" } }