forgingbanana

so my server was working fine last time I had it open then for some reason it stopped working. Every time I loaded the launch.bat file it came up with this error: [SEVERE] [ForgeModLoader] Fatal errors were detected during the transition from SERVER_ABOUT_TO_START to SERVER_STARTING. Loading cannot continue I don't understand why it started doing this and i don't know if that's all needed to understand the situation. looking at the log I seen this error also: [FINE] [ForgeModLoader] MineFactoryReloaded|CompatAppliedEnergistics(MFR Compat: Applied Energistics:1.5.1R2.6.4): MineFactoryReloaded-2.6.4-975.jar (NO VALID CERTIFICATE FOUND) This appeared quite frequently too. additional information is that i fixed the library problem by using a FTB library file, could that have something to do with it? if anymore logs are needed please say and if you have a solution please answer thanks for helping