sed: -e expression #1, char 91: unterminated `s' command

[raihanhbh]

I was trying to execute the following command:

sh ses_emailer.sh --subject "This is a sample email from pigeon server" --from "[email protected]" --receiver "[email protected]" --body "ses says hi" --attachment /var/www/sites/error_20200302.txt

Hence receiving the error sed: -e expression #1, char 91: unterminated s' commandonce I am adding--attachment /var/www/sites/error_20200302.txt`