My MacBook Pro freezes at random instances and then I can't shut it down

Question

Product name: MacBook Pro 15 inch mid 2009
Processor  2.8 GHz Intel Core 2 Duo
Memory  4 GB 1067 MHz DDR3
Storage: Macintosh HD 500 GB
Operating system: 10.9.5
Hi. The past two days I have started experiencing some problems with my macbook. It started while I was playing Football Manager with a dialog box coming up stating "could not access match data" or something like that, which caused my save game to not being able to be rewritten. I quit the game and tried to open Chrome but the icon jumped once and then it stopped without opening the browser. I tried to shut down my laptop but no dialog box came up and nothing happened. I relaunched finder but it didn't fix the problem so I was forced to shut down my laptop by holding on the power button. After that my laptop and the applications were working fine and I thought it was a problem created by the game. However, later on in the day, and while I was browsing on chrome I got an "Aw snap" message and chrome stopped working. I quit chrome, tried to relaunch it but the same thing with the icon happened and then I couldn't restart my laptop or shut it down or use any other application. After I force shut down my computer I downloaded the last update for my OS X, reinstalled Chrome, removed a lot of stuff from my HD leaving 120 GB free and thought that that would solve the issues. But it didn't. Twice more chrome froze and once more Football Manager leading to the same issues. I can't see what I am doing to cause this, and it seems that it started happening out of the blue. I would really appreciate it if someone could help me identify the problem and ultimately fix it. Let me know if you require more info.    

Answer 1

I don't know if we are experiencing the same problem, but this is what I did and it seemed to work for me so far.
Before anything I had to hard restart my laptop. hold power button until off then turn back on.
In Finder click on Go, then click Go to Folder.  in the dialogue box type
/var/db/crls
In that folder there are two files that you need to move to the trash
crlcache.db
ocspcache.db
You will need to type in your password to move these to the trash.
Restart your computer and then Empty the Trash.  It is very important that you empty the trash afterwards.  I forgot to do this the first time and I had to restart the whole process.  It has been a few days and I have been without any problems.
I am not claiming this process to be my own, I found it on another discussion thread and it worked for me. I don't have a link to it because I had to use someone else's computer and had no luck trying to find it again. This is the procedure I followed, I do remember it well and I wrote down the steps because I had to do it twice and got tired of combing through all of the websites I have searched looking for a fix to my problem.  Hopefully this helps, and try it at your own risk of course.
Let me know if you try it and it works or not, good luck.