Web proxy error

Hi, I’m having a problem with web proxy and one particular web address that users can’t access with proxy enabled. Users are getting error: Address family not supported by protocol When I hit refresh in the browser I get the page working.

While trying to retrieve the URL http://visaszales.lv/Z%c4%81les/Visas/aspirin/0:
•Address family not supported by protocol

                 
                 /ip proxy> print
                 enabled: yes
             src-address: ::
                    port: 8080
               anonymous: no
            parent-proxy: ::
       parent-proxy-port: 0
     cache-administrator: it@xxxxx.lv
          max-cache-size: unlimited
   max-cache-object-size: 2048KiB
           cache-on-disk: no
  max-client-connections: 600
  max-server-connections: 600
          max-fresh-time: 3d
   serialize-connections: no
       always-from-cache: no
          cache-hit-dscp: 4
              cache-path: web-proxy



/ip proxy access> print
 7                                         *visaszales*                                                            allow         730
 9                                         *                                                                       deny

Any ideas? Thank you in advance!

I think the error occurs because of the special characters in the link.

When opening this link:
http://visaszales.lv/Aptiekas/Magoņu_aptieka_SIA_Sentor_Farm/1016

I get the error with a modified link:
While trying to retrieve the URL http://visaszales.lv/Aptiekas/Mago%C5%86u_aptieka_SIA_Sentor_Farm/1016:
•Address family not supported by protocol