http://frycoin.p2p.0x0a.nl:9900 was down for about 1.5 hours due to a wallet crash:
received block 8dd65937374063ba65e4a6aea20b145a54789ccf905b86751873a062ae80cf61
Checking for Pulse on 272813: True
ERROR: AcceptBlock() : Blocked by Pulse
ERROR: ProcessBlock() : AcceptBlock FAILED
connection timeout
received block b3bf7b4f16774a02e8b8eb5fb08ecf133318a5aee12149a2b2ebc6010c723d8c
Checking for Pulse on 272813: True
Committing 3 changed transactions to coin database...
SetBestChain: new best=b3bf7b4f16774a02e8b8eb5fb08ecf133318a5aee12149a2b2ebc6010c723d8c height=272813 log2_work=47.767045 tx=341404 date=2014-08-02 16:01:11 progress=0.999999
ProcessBlock: ACCEPTED
CreateNewBlock(): total size 1000
ThreadRPCServer method=getblock
getheaders 272813 to b3bf7b4f16774a02e8b8eb5fb08ecf133318a5aee12149a2b2ebc6010c723d8c
getblocks -1 to 0000000000000000000000000000000000000000000000000000000000000000 limit 500
trying connection 84.87.20.249:55901 lastseen=5.3hrs
ThreadRPCServer method=submitblock
received block fadacbce3c96f127ede4880adaa0be0c71edf73824f31d9ac9a7a3af20d02bff
Checking for Pulse on 272813: True
Frycoind: main.cpp:1610: static const CTxOut& CTransaction::GetOutputFor(const CTxIn&, CCoinsViewCache&): Assertion `coins.IsAvailable(input.prevout.n)' failed.
/home/user/bin/frycoind: line 20: 14011 Aborted /home/user/src/frycoin/src/Frycoind -printtoconsole -mininput=0.00000001 -conf=/home/user/.frycoind//frycoind.conf -datadir=/home/user/.frycoind -gen=0 -timeout=1000 -onlynet=ipv4
Seems like a Pulse related problem

I don't have the time to dig into it (nor the expertise I think), but hopefully some of you can? The pool is back up and processing blocks so fortunately it's not a persistent problem.