Today, I experienced a conflict between two dimension IDs using the same ID. Naturally, I went into the Dalek Mod config and changed the IDs to a different number than any of the currently used ones. I would have changed the dimension ID for the other mod, but the other mod, Flans, doesn't have the option to change the dimension ID in its config.

After changing the config, I went into singleplayer and tested out if I could successfully travel to the Dalek Mod dimensions. I was able to get into the TARDIS alright, but as soon as I click on the TARDIS monitor and selected one of the Dalek Mod dimensions, it booted me out of singleplayer, only giving me the message "Shutting down internal server." and then "Disconnected." If I select other dimensions, it either gives me the same message as before, or causes Minecraft to stop responding, not generating a crash-report. 

Can someone please help me?

Pastebin wouldn't let me post it since it exceeds the maximum kilobytes, so I used a different pasting website. Here is the log; https://justpaste.it/7gsxc

Sorry about that, here is a better log only with Flans, Dalek Mod, and Optifine. The same error still occurs, however. https://pastebin.com/1Dk5zhWF