Blank pronote signature difficulties ?

my friend signed blank pronote signature,and company old staff 2 employees also signed witness at the same time,(previously company dues 1lakh above), my regular signature is not on pronote ? what happened later if file pronote ? (company previous customers ordered must sign otherwise lock the three staff members at store room without food) company staff feared singed the pronote ., how to accept court this pronote ? pls contact no. 9989014113 if solution very urgent