Please read the first page of the STOP (DJVU) Ransomware Support Topic for a summary of this infection, it's variants and possible decryption solutions with instructions (including what to do if the decrypter does not work) AND the ***IMPORTANT: @ ALL VICTIMS.... note at the top. "Before asking questions...PLEASE READ these Frequently Asked Questions (FAQs)."
You need to post any questions or the required required information in that topic. If you have followed those instructors and need further assistance or the decryptor did not work, then you still need to ask for help in the above support topic. I cannot assist you here.