Random Skyblock Malfunctions

My login name is HoagieSandwich.

The following errors started at (9:23p.m 5/4/2013):

-Mobs no longer spawn on my island.

-Nether Portal is not functional (does not tp to nether)but is fully illuminated purple.

-Eggs can be placed but no animal appears.

This started while i was in my skyblock,all of the mobs stopped moving like a typical lag.However when i did /island and teleported all of the errors began at once.Admin Badboy replaced my lost eggs(ty=)) but was unable to find out the cause of my problems.I thought i would post this in case others are experiencing the same issues.

Any help would be appreciated!=D