*HELP* (This shop is unavailable) HOW?

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I have a problem with my store I would like to solve

I have a problem and I wanted to contact you, it happened that my store is normal and is currently unavailable.
 And I can't even enter Shopify Admin I doubt that the Shopify team froze my store because it was not paid Shopify plan but they only told me when 
I don't pay oct.4 only then will I freeze it if you could help me with what's going on
Normally I want to log in to my admin and pay my bill
I don't understand why my store is frozen because it said that Oct 4 will be frozen if I don't pay