Notice: Undefined index: src in /vendor/magento/framework/View/Page/Config/Generator/Head.php on line 125
How to fix it. please reply.
Put your store in developer mode
php bin/magento deploy:mode:set developer and make sure you have cleared the following directories:
rm -rf var/cache/* rm -rf var/page_cache/* rm -rf var/generation/*
It could be a third-party extension issue too.