help with error log

I am PHP developer working on a website where we receive 500 Internal Server Error. I requested the apache error logs. I could see the following after the execution of php script file.

Error Log Details
and also

I would like to know if these are the things causing the internal error.
Or please let me know how should I proceed with this to find a solution.

I have already done checking the file permissions for my php scripts
and also tested scripts for errors or warnings

Thank You

re: help with error log

What happens if you print out the exact SQL statement and run it from a command prompt ?

re: help with error log

I had checked with the website for errors in SQL statements but they are fine. I had really no idea about the error log. If any error is pointed out in the php scripts I can correct it. Or if there is a problem with the apache server configuration, I can ask the server people to configure it.

Please let me know if you know more details.

Thanks for responding...

re: help with error log

When do you get this error? Is it coming up on every page or on specific pages?

re: help with error log

The error is coming nearly on all the pages. After I get an Internal Server Error, I get the same page exactly right without problems by refreshing the page. The error doesn't occur very frequently but at times which is troublesome.

re: help with error log

There were a ads section that was placed on several pages, once I removed the ads section, I did not get the internal server anymore. But I still had to check over 1 or 2 days to confirm, If exactly it was the problem with the ads (1 or more ads)

Thank you very much for all your responses

samatair

re: help with error log

Good to hear that you solved it.