Guild Wars 2

Hi I play gw2 since yesterday on my Mac and sometimes when i go to another area i disconnect from the server. Please help me, the time i played on the game i enjoyed very much!

I placed an example of the error in attachment

The same problems started 3 days ago. I can`t get enjoy from playing. I try to change port, and reset router… but nothing help me.( Game crashing every time(
mb I have to find another game