After working on my site for a while, in Wordpress dashoard I changed URL as a test and after it I cant acess my site anymore

So on the 000webhost dashboard it says my site is online and working
000webhostproblem1
but when I click on the link its like this for past 2 days
000webhostproblem2

Bare in mind this happened after I played with changing the URL in wordpress dashboard, sadly I cant acess it anymore either through /wp-admin.

I’d really need help in recovering access to my site and Im thanking you in advance.

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Thank you lots, this helped, hope you enjoy your day.