Just happen recently doesn't let me view my invoice

Hi i have taken a copy of the log file that posted on the server show me the following error.
When i click on view invoice or link to invoice show me blank page with error “Something when wrong” on the page in gray letters. the error show below…

[Tue Aug 31 21:57:51 2021] [error] [client] PHP Deprecated: Unparenthesized a ? b : c ?: d is deprecated. Use either (a ? b : c) ?: d or a ? b : (c ?: d) in /app/Models/Account.php on line 1126, referer: https://invoice.6dysp.com/public/settings/invoice_settings

The above error repeats over and over…


Please check you’re using PHP 7.3, if you use 7.4 you can see this error.

I using PHP 7.4 so i should take it back to 7.3 let me try that…
thank you.

worked fine …Yeah… it seem to be smooth i haven’t upgraded yet but plan to soon.
Thank you.