The Sun substitutes 'pot of bother' for 'spot of bother' with its headline of 'Council chief in a pot of bother'.  It's a story about a council leader in Buckinghamshire who is responsible for fixing potholes. He smashed up his own BMW car when he hit a pothole, a four inch deep crater in the road, which caused £20,200 of damage as he burst two tyres and wrecked the wheels. 

A pothole is a hole in the road. 
If you're in a spot of bother, it means you're in trouble.