Having an issue with a software, need help

Solution
Set your regional settings to use dot "." and not comma "," when entering floating point numbers. Or contact that "mailer.exe" application' developers for more help.
Set your regional settings to use dot "." and not comma "," when entering floating point numbers. Or contact that "mailer.exe" application' developers for more help.
 
Solution


Thank you so much, it solved my problem.