If you are unable to log into your account on the website, it probably means your storing an old version of the airsoftworld.net cookie. To fix this you will need to do the following.
Remove cookies from your browser (Without opening airsoftworld.net), do this for each device you log into the airsoft world website with (without opening the webpage up)
Once each device and or browser that you use to login has had to cookie cleared, go to airsoftworld.net and click on the reset password link.
You will then receive an e-mail on instructions for resetting the password.
After the password reset, you should have no problems logging in after that.
I've tested your account, and not had issues logging into it, so hopefully after doing the above it should clear the problem