Friendly URL issue

[spiros1112]

Any idea on this problem with the gallery module?

migrated from prestashop 1.6.1.12 to prestashop 1.7.6.2

SEO& URL
Page ; customersgallery-gallery
Rewritten URL ; gallery

and then in ps_mainmenu configuration:
Linklist
Label ; Customer gallery
Link ; /gallery

Somehow it changes from /gallery to http://gallery

Causing the iframe or page not to show the customer gallery page of mypresta.eu

can't change the routing :

from

{category:/}{id}{-:id_product_attribute}-{rewrite}{-:ean13}.html

to 

{category:/}{id}-{rewrite}{-:ean13}.html

error when changing:

Keyword "{id_product_attribute}" required for route "product_rule" (rule: "{category:/}{id}-{rewrite}{-:ean13}.html")