hello, I'm just learning odoo, and I encountered an error when I wanted to print a report, when I printed the pdf the data was successfully downloaded but the contents were empty. while for excel print an error like the following:

        
TypeError: tableSelect_filename is null
        
http://localhost:8069/web/content/117016-e1c795a/web.assets_backend.js:3454
Traceback:
export_to_excel@http://localhost:8069/web/content/117016-e1c795a/web.assets_backend.js:3454:28
dispatch@http://localhost:8069/web/content/116990-658ca92/web.assets_common.js:892:451
add/elemData.handle@http://localhost:8069/web/content/116990-658ca92/web.assets_common.js:865:173