I have been using my new UM3 (my first 3D printer!) for a few days, and now I am getting lots of errors when using the printer.
Currently I am seeting "There is an I2C communication error. Go to ultimaker.com/ER19 " anytime I want to change any print core or material; and this has left me in a state where I cannot print anything.
Additionally, all of the ultimaker.com/ERxx urls lead to 404 Not Found pages, oh no!
Anyone know how to resolve this specific issue, or better yet, where the actual error code webpages are?