It was of the "The page took too long to respond" situation. I tried it every time and that's how it says, but all other sites load and work fine.
Disc space wouldn't have reached the limit, coz I did not do a lot of work on my site, just the basic outline.
Don't know about htacess, so I'm not sure of it.
Plugins were highly used ones, and I used Phlox theme, which has a good review and usage.

Other factors, I'm not familiar with. Is it possible for a crash if the php memory limit is increased?