@quochuy, these witnesses you have voted for have retired (or are running a zombie server):

cryptohazard, pjau

You have 1 witness votes left to use.

You are voting for: aggroed, ausbitbank, bobdos, cryptohazard, c-squared, curie, dmitrydao, drakos, dsound, enginewitty, gtg, guiltyparties, helo, helpie, jackmiller, lux-witness, patrice, pcste, pfunk, pjau, quochuy, qurator, someguy123, steemgigs, stoodkev, thekitchenfairy, timcliff, untersatz, yabapmatt.