Bug fix, Existing web Application java [URGENT]

I need my website re-configured. Hi, I am implementing the module screenshot and attendance of employee. This module is completed, but It have some minor bugs which need to be fixed. Explanation of module: In this module whenever user will be logged in the current timestamp will be stored in db as a checkin of employee, with logout the checkout will be recorded in database. After login the screenshot of user's screen will be taken after every 3 mins, Technologies I'm using: ECLIPSE, Quartz, Jsf, mysql jdbc, robot, tomcat The bugs are: 1) on logout I am able to stop the screenshot job of quartz, but whenever I try to login back than the job doesn't start again. I need to redeoply the project 2) if 2 users login at same time than my program will fail in a sense that it'll store only first logged in user screenshot, it doesn't handle the 2nd one. Note: I need this thing to be fixed urgent, maximum 3 to 4 hrs.