Should I accept a counter offer from my current employer?

I got offered a job at £28k with 15% annual bonus, my current employer has offered me £27k and I wouldn't need to travel an hour.

They asked why I wanted to leave and told them that the court case that the company has this year (meaning that directors could be imprisoned) scared me into thinking I was going to be made redundant and I felt swamped. He spoke to the director and told me that the worst case scenario would be a fine and we talked through a new way of managing my workload.

I've heard that accepting counteroffer ruins trust and reputation.

I don't know what to do.

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Would accepting the counter offer ruin my reputation and my employers trust in me?
Should I accept a counter offer from my current employer?
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