when I add a mod that adds new inventory mechanics,blocks, and other stuff that's no graphical, if the world is created, when you close it and reload, it freezes at 0% and gives me this lines of log
computer specs: OS: Windows 10 (amd64) version 10.0; Java: 1.8.0_141, Oracle Corporation,OpenGL: ATI Mobility Radeon HD 4500 Series, version 3.3.11672 Compatibility Profile Context, ATI Technologies Inc., processor: intel pentium G620 dual core