How can I fix an Opencart 3 page loading error?

Question

The following problem sometimes occurs when the page loads and also on the admin page. The error is not permanent and will disappear after the page is refreshed. What could be the problem and how could I fix it?

This is an error message:

Warning: fopen(/web/htdocs4/wallartdecorhu/home/www/system/storage/cache/cache.store.1604651378): failed to open stream: No such file or directory in /web/htdocs4/wallartdecorhu/home/www/system/library/cache/file.php on line 28Warning: flock() expects parameter 1 to be resource, boolean given in /web/htdocs4/wallartdecorhu/home/www/system/library/cache/file.php on line 30Warning: filesize(): stat failed for /web/htdocs4/wallartdecorhu/home/www/system/storage/cache/cache.store.1604651378 in /web/htdocs4/wallartdecorhu/home/www/system/library/cache/file.php on line 32Warning: fread() expects parameter 1 to be resource, boolean given in /web/htdocs4/wallartdecorhu/home/www/system/library/cache/file.php on line 32Warning: flock() expects parameter 1 to be resource, boolean given in /web/htdocs4/wallartdecorhu/home/www/system/library/cache/file.php on line 34Warning: fclose() expects parameter 1 to be resource, boolean given in /web/htdocs4/wallartdecorhu/home/www/system/library/cache/file. php on line 36

Answer 1

保留system/library/cache/file.php的备份，然后从https://github.com/opencart/opencart/blob/master/upload/system/library/cache/下载system/library/cache/file.php file.php并替换旧的。