Error in file temp after upgrade

Hello.

my project was in .netframework 1.1(vs 2003) and I upgrade it to .net 4.8 (vs 2019).

I Install SAP crystal report 13.0.27.3480 in windows 10.

I can preview the report in vs2019 report viewer.

but when run program and click on "Show Report" button display this error :

error in file temp : {5456a4sd-5a64sd...}

Error in formula 'formula name'

Global NumberVar 'var name'

I remove line 1 but 'WhilePrintingRecords' display error.

how can I fix it?