error 500

[akarpas]

Installed prestashop 1.7 locally on synlogy server installation went fine no errors, shop runs well locally via local IP.

Configured DNS, NAT to be able to access shop via domain name. So if i access shop via test.domain.com/prestashop1.7/ shop is opened normally no problems.

but i want shop to be opened just by domain name shop.domain.com   so i have to configure synology web station virtual host to point domain to prestashop1.7 forlder.

On prestashop all i did is to change friendly url fom local IP to domain name and to change uri from prestashop1.7 to sometninglike xxx

So then i type in domain name shop.domain.com it bings me to error page 500 but if i take virtual host conf from web station and enter shop.domain.com/xxx/ shop is opened with no problem.

Ho to fix this problem ? Any ideas?