When engine ran low of oil it quit now start?

If your engine seized due to low oil, it likely won't start and may require significant repairs. Running an engine low on oil causes severe damage because the oil lubricates moving parts. Without it, metal grinds against metal, causing scoring and potentially catastrophic failure.

Do not attempt to start the engine. Doing so could cause further damage. You need to have a mechanic diagnose the problem. The damage could range from needing an oil change and filter replacement to requiring a rebuild or even engine replacement. The cost will depend on the extent of the damage.