Error on adding new virtual product

[dinorondic]

When i try to add new virtual product to prestashop, i get some error, which i dont know how to fix.

 

Error code:

Fatal error: Uncaught exception 'UnexpectedValueException' with message 'RecursiveDirectoryIterator::__construct(/home/relectne/relect.net/html/shop/cache/smarty/cache/blocknewproducts/20141018): failed to open dir: Permission denied' in /home/relectne/relect.net/html/shop/tools/smarty/sysplugins/smarty_internal_cacheresource_file.php:196 Stack trace: #0 [internal function]: RecursiveDirectoryIterator->__construct('/home/relectne/...', 0) #1 /home/relectne/relect.net/html/shop/tools/smarty/sysplugins/smarty_internal_cacheresource_file.php(196): RecursiveDirectoryIterator->getChildren() #2 /home/relectne/relect.net/html/shop/tools/smarty/Smarty.class.php(837): Smarty_Internal_CacheResource_File->clear(Object(Smarty), '/home/relectne/...', 'blocknewproduct...', NULL, NULL) #3 /home/relectne/relect.net/html/shop/classes/Tools.php(2596): Smarty->clearCache('/home/relectne/...', 'blocknewproduct...', NULL) #4 /home/relectne/relect.net/html/shop/classes/module/Module.php(2118): ToolsCore::clearCache(Object(Smarty), '/home/relec in /home/relectne/relect.net/html/shop/tools/smarty/sysplugins/smarty_internal_cacheresource_file.php on line 196

Anyone knows how to repair this?