Error Code 105

This only started happening a couple of days ago, and searching the reported bugs has shown me nothing. When I go online within the gallery within The Sims 4 and try to see everything others have uploaded, I get a message saying I'm offline and need to connect. To which I click connect and go online. However, once I've done this, the game freezes and then the EA launcher starts flashing with the following error (see attachments). My game stays on but runs very slow and won't show anything other than what I have saved to my gallery.

This happens no matter if I go to the gallery via build & buy or if I just go to the gallery via the start up screen. This has never happened before so I'm unsure how to fix it.