Issue Description:

Another player told me that placing an Enderstorage tank on top of a Blood Altar yields the following crash.

Affected Versions (Do not use "latest"):

• BloodMagic: 1.9.4-2.1.0-61
• Minecraft: 1.10.2
• Forge: build 2088
• EnderStorage: 2.1.3.75 (with a minor tweak that I made especially for this person and that did not change anything about the "class structure", so couldn't have caused this particular crash.

Ender Storage issue