"Can't Keep Up!" Modded server keeps starting, then stops.

Heyo. I have a modded server (Forge 1.12.2) for my friends and I. It was working yesterday, and I've been trying to get it to work again today for the past three hours to no avail. I keep getting this message: "[01:29:45] [Server thread/WARN] [net.minecraft.server.MinecraftServer]: Can't keep up! Did the system time change, or is the server overloaded? Running 2013ms behind, skipping 40 tick(s)."

Here's the log: https://mclo.gs/SiolUw4

And a list of the mods included:

-CustomNPCs_1.12.2(26aug18).jar

-Decocraft-2.6.2_1.12.2.jar

-MorePlayerModels_1.12.2(18jan18).jar

-PTRLib-1.0.3.jar

-(Mr Crayfish's Furniture) furniture-5.16.0-1.12.2.jar

-malisiscore-1.12.2-6.4.0.jar

-malisisdoors-1.12.2-7.3.0.jar

-malisisswitches-1.12.2-5.1.0.jar

-techguns-1.12.2-2.0.1.1.jar

Help, please!