Error: 140 blocks generated, 96 expected

Hello, I received the error below, is it normal?

{
“version” : 1000001,
“protocolversion” : 170002,
“walletversion” : 60000,
“balance” : 31.59000000,
“blocks” : 8428,
“timeoffset” : 0,
“connections” : 14,
“proxy” : “”,
“difficulty” : 375.61847784,
“testnet” : true,
“keypoololdest” : 1476727234,
“keypoolsize” : 101,
“paytxfee” : 0.00000000,
“relayfee” : 0.00005000,
“errors” : “WARNING: abnormally high number of blocks generated, 140 blocks received in the last 4 hours (96 expected)”
}

Yes, that error is normal for the testnet since difficulty is not set. I just means a large number of blocks were found, more than expected.