I cannot create my .exe because of the errors below

But I could not find the command lines in the form methods

Is there any way to find it ?

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Form c:\1_software\1_diskpizza52\disk5\estoque1.scx has the following errors:
Unknown MESSABEBOX - Undefined

Form c:\1_software\1_diskpizza52\disk5\estoque_novo.scx has the following errors:
Unknown MESSABEBOX - Undefined