2006 MySQL server has gone away -- error logging into admin

[gsdcypher]

what would cause this error when trying to log into admin?

2006 MySQL server has gone away in: [select * from coupon_gv_queue where release_flag='N'] If you were entering information, press the BACK button in your browser and re-check the information you had entered to be sure you left no blank fields.
2006 MySQL server has gone away in: [select count(*) as total from sessions where sesskey = '9b23f29368bd36c80852b61dada4cac0'] If you were entering information, press the BACK button in your browser and re-check the information you had entered to be sure you left no blank fields.

[DrByte]

The following link, taken from the "similar threads" section below talks about the same error: http://www.zen-cart.com/forum/showthread.php?t=72886

[gsdcypher]

Thank you DrByte. I appreciate the response and re-direct.