Fix an issue when plugin registry is not present usually in login page
Fix an issue when plugin registry is not present usually in login page

hitsumabushi/processmaker,hitsumabushi/processmaker,tomolimo/processmaker-server,colosa/processmaker,tomolimo/processmaker-server,colosa/processmaker,colosa/processmaker,hitsumabushi/processmaker,tomolimo/processmaker-server,baozhoutao/processmaker,baozhoutao/processmaker,baozhoutao/processmaker,baozhoutao/processmaker,baozhoutao/processmaker,baozhoutao/processmaker,hitsumabushi/processmaker,tomolimo/processmaker-server,hitsumabushi/processmaker,colosa/processmaker,tomolimo/processmaker-server,hitsumabushi/processmaker,colosa/processmaker,tomolimo/processmaker-server,colosa/processmaker