THE COMMANDS ARE NOT WORKING

ok so i use this simple command below
loclxd tunnel http --region ap --to localhost:2000 --reserved-domain {reserved domain}
and when i go to the domain that i just ran my app on i get an error 502 bad gateway or error 503 your local address is unreachable

and if i try to run the command with reserved domain tag:
loclx tunnel http --to localhost:2000 --reserved-domain example123

I get this error:

Error: validation failed [ReservedDomain has invalid format]

and i cant use the —region tag with the —resreved domain tag it gives error:
loclxd tunnel http --region ap --to localhost:2000 --subdomain example13

Error: this is a reserved subdomain, you should not use it as temp subdomain
what do i do i cannot connect my app or use it i need help asap