Error when trying to update to 1.9.0-Pre3 from Pre2

[unkempt patrol]

please send full logs next time

[main yarrow]

What for? I checked the entire log before sending it, and the error only occurs in this section.
In fact, it only happened when the Update option appeared on the screen when I started the game

Furthermore, only mods are initialized, nothing more

[thorny hinge]

This is an issue with your network connection