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Error messages such as follows appear when I go to to my website and also appear in admin panel. I cleared cache in system folder, and errors disappeared temporarily but now they appear again. How should I fix it?

Warning: unlink(G:/PleskVhosts/domain.com/httpdocs/system/cache/cache.currency.1440191826): Permission denied in G:\PleskVhosts\domain.com\httpdocs\system\library\cache\file.php on line 17Warning: unlink(G:/PleskVhosts/domain.com/httpdocs/system/cache/cache.language.1440191825): Permission denied in G:\PleskVhosts\domain.com\httpdocs\system\library\cache\file.php on line 17Warning: unlink(G:/PleskVhosts/domain.com/httpdocs/system/cache/cache.order_status.1.1440191843): Permission denied in G:\PleskVhosts\domain.com\httpdocs\system\library\cache\file.php on line 17Warning: unlink(G:/PleskVhosts/domain.com/httpdocs/system/cache/cache.store.1440191843): Permission denied in G:\PleskVhosts\domain.com\httpdocs\system\library\cache\file.php on line 17

Your SHOP CACHE Sub File Content cannot be cleared out, because the Sub-Program has not
sufficient ADMIN Handling-RIGHTS, or wrong Server Settings, to achieve this.
So, first, make sure CHMOD of the CACHE Directory is set correctly.
Ernie

IP_CAM wrote:Your SHOP CACHE Sub File Content cannot be cleared out, because the Sub-Program has not
sufficient ADMIN Handling-RIGHTS, or wrong Server Settings, to achieve this.
So, first, make sure CHMOD of the CACHE Directory is set correctly.
Ernie

Yes! The problem seem to be fixed. Thanks!