Fix pool control error handling
Fix pool control error handling

Lingling7/flower,Lingling7/flower,pj/flower,allengaller/flower,barseghyanartur/flower,allengaller/flower,ucb-bar/bar-crawl-web,asmodehn/flower,jzhou77/flower,ucb-bar/bar-crawl-web,allengaller/flower,getupcloud/flower,pygeek/flower,ucb-bar/bar-crawl-web,getupcloud/flower,getupcloud/flower,ChinaQuants/flower,lucius-feng/flower,raphaelmerx/flower,lucius-feng/flower,pygeek/flower,tellapart/flower,alexmojaki/flower,jzhou77/flower,barseghyanartur/flower,marrybird/flower,pygeek/flower,marrybird/flower,ChinaQuants/flower,Lingling7/flower,pj/flower,alexmojaki/flower,marrybird/flower,pj/flower,tellapart/flower,barseghyanartur/flower,ChinaQuants/flower,raphaelmerx/flower,lucius-feng/flower,asmodehn/flower,jzhou77/flower,tellapart/flower,asmodehn/flower,alexmojaki/flower,raphaelmerx/flower