It sounds like you’re dealing with a flat or damaged tyre situation! If you need advice, here’s a general approach:
Assess the Damage: Check if the tyre has a visible puncture or tear, or if it’s just deflated. Small punctures (like from a nail or screw) might be repairable, but large gashes or sidewall damage typically require a replacement.
Inflation Check: If you’ve got a spare, you can try inflating the flat to see if it holds air. Sometimes, the issue is just a slow leak.
Temporary Fixes: If you don’t have a spare, some emergency tire sealants can get you to a repair shop, but they’re often not a long-term solution.
Professional Help: Ideally, a tire specialist or roadside assistance service can assess it further. They’ll know if a patch or plug is viable or if a full replacement is necessary.
If you’re near a tyre shop or can get in touch with someone, they’ll likely advise on the best brand and fit for your vehicle, depending on your needs and budget.

