Blown fuse?

Yesterday I tried installing a recessed light in my basement. I turned off the power and installed and turned power back on and the new light wasn’t turning on. When I checked, I turned off the power again and the connection wasn’t tight and was disconnected. Then i turned power back on and another light next to it... show more Yesterday I tried installing a recessed light in my basement. I turned off the power and installed and turned power back on and the new light wasn’t turning on. When I checked, I turned off the power again and the connection wasn’t tight and was disconnected. Then i turned power back on and another light next to it went out also. Everything else still works in the basement just now not the 2 lights. And the breaker switch I used controlled the whole basement including those 2 lights but now only those two light don’t work. I switched the bulbs and still nothing. Can someone tell me what’s wrong?
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