Unexpected Parse Error Lookup Table

[DesignConMech]

I am using an existing lookup table for pipe fittings to add labor rates as a column, and for about 25% of the fittings I get this error saying unexpected parse error, any pointers or tips would help, thanks!

[iainsavage]

what is the symbol after the equal sign in your formula?

[DesignConMech]

This is the full code used in there 

size_lookup(Lookup Table Name, "Labour", 0, Diameter1)/1"

[iainsavage]

Is it possible to upload the family?

Also which version of Revit?

[DesignConMech]

Revit 2022, 

Thanks!

[RLY_15]

Are you positive this is the same file?

There's a number of parameters that don't exist in the family file that show up in the initial screenshot (Wheel Type, Lever Type, Globe Type, etc....), the Labour parameter that you're referencing as the new addition to the file doesn't exist, and the lookup table export doesn't include "Trial", "Wheel", "Lever", "Globe", etc...

There aren't many 'Unexpected parse error' results in Google but the one resolved result suggests an overlap between naming conventions in the lookup table vs the parameters list.