Great problem with rediraction domain for Presta shop

[Krzysiek91]

Hello,

 

I ask you for  help with rediraction domain for PrestaShop. I've received bad hint and I really regret it because I have lost an access to administrative panel. 

Firstly, I've rediracted domain to server file with my shop in active.admin

Secoundly, T've modified in "SEO&URL" three headings:

Shop Domain: osmykontynent.pl

SSL Domain: osmykontynent.pl

URL: /sklep

 

Screen 1 shows a problem that was seen at our domain: 
 

I've received a guideline to log in MyPHPAdmin and change a parameter in table " PREFIX_shop_url" from "/sklep" to "/" (that I've already done) and clear the cache.

 

Screen 2 shows new problem 

 

How can I fix this problem? Do you have any idea? I would be really grateful for advises.

 

 

I received a bad hint

 

I received a bad hint

 

 

[Krzysiek91]

Could you tell me what to do when a domain shows an error that look like below? :
 

Warning: Cannot modify header information - headers already sent by (output started at [...]/classess/shop/Shop.php on line 

 

I've seen some topics, that was started in this forum, but without solutions. Is anyone know what is the reason of this problem and how to fix it?