Recheck an MT4 Forex Expert Advisor / find the Bad code please

Hi guys, I have an Expert Advisor for MT4, and i need somebody to check all my codes, cause i guess there is a bad code in it. The source code has less than 1500 lines. It's a simple straddle Technics method with a switcher for Pending Orders or Market Orders. Pending orders working fine, but Market orders not, even if i run more than 1 robot on same currency pair. I will pay 50% (milestone) just for your work and time, and another 50% if you have fund and fixed my bad code. I need this job in less than 3 days please. Thank you.