Hello there,
Congrats on the 750. Now on to the tough part.... getting a 2nd MBA can be a big challenge, admissions-wise.... you have to basically prove that you deserve a place in the class above all other applicants who do not currently hold an MBA already... and that is tough when it seems that they'd need it more. Not impossible, but tough. So know that your top priority is simply explaining your story... why you do NEED this additional degree and exactly how you'll use it.
Your grades during your prior MBA sound quite low, and your career path at the moment sounds at risk for appearing scattered.... again your story telling of how your career has shaped up and what you've learned and gained from each step of the way will be key here. Are you looking at US schools or other countries? 1 year or 2 year, part-time or full-time, other criteria etc? I would say you'd need to look outside the top 25+ in the US for best chances... but maybe with a deeper review things would look stronger, getting to know your story more... feel free to sign up for our consultation at some point if desired. Good luck!