car dies while iding. (recently died while driving low speed)

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about 2 months ago my car died while idling. I took it to the mechanic and he replaced the spark plugs and a coil which were past due. it ran fine for about a week and I hadn't driven it after that due to the quarantine. but a couple of days ago I had to drop something off to a relative and it died while idle again. today it died again only this time check engine light and EPC light came on. just to check this off the list I changed the battery as the old one was from 2015. it started up and ran fine for about half an hour and it then died while I was driving at low speed. same lights came on.