The value of DELSTR parameter 2 is outside of the permitted range. The current value is: -2147483648. The permitted range is: from 1 to 1024.

This problem is generating when you use format address code unit function.
So if you use.

FormatAddr.Company(CompanyAddr,CompInfo);

then check the dimension and variable length size of "CompanyAddr" array .
If you not specify then give proper length and its dimension properties.