Oracle Forms

Hi Everyone,
When I try to open forms for a particular application, I get FRM-18108 error. Form does open.
I am working on three different application.
All objects related to the application are stored as:
M:\app\app01
subdir: db_obj, forms, reports, icon, lib etc
M:\app\app02
subdir: db_obj, forms, reports, icon, lib etc
M:\app\app03
subdir: db_obj, forms, reports, icon, lib etc

Forms for app01, app02 are fine, they open, I can modify them.
app03 forms opens with this information.

FRM-18108: Failed to load the following objects.

Source Module:tmplate
Source Object: ON-MESSAGE
Source Module:tmplate
Source Object: WHEN-WINDOW-RESIZED
Source Module:tmplate
Source Object: ON-ERROR
Source Module:tmplate
Source Object: KEY-CLRFRM
Source Module:tmplate

There is no such module with the name "tmplate"
All source objects mentioned in the error are attached objects.
I tried to check the "subclass information" property of these objects.
this is the error I get:
"Could not fine the source object. Press view to view the existing source info or edit to change the source info" with three button "View", "Edit", "Cancel". If view is clicked the subclass window is greyed, but you can see the module is 'tmplate'.
I checked the 'C' drive where all executables are stored, there is no object with the name 'tmplate'.

Is this module lost, is there any way to recover it?
Out of these three application app03 was developed by a vendor, who I think still supports to some extent. Did he not provide the template so that no one else is able to modify.

Thanks to all,

Habeeb