! Missing strings in frontend language file

Hello,

Some strings are placed in the admin file and this causes to not display correctly on the frontend
(you need to refresh the page to see the text displaying)

Please add the following strings in the frontend language file en-GB.com_payplans.ini

COM_PP_DOWNLOAD_MY_DATA="Download My Data"
COM_PP_INVOICES="Invoices"
COM_PP_ACCOUNT_PREFERENCES="Account Preferences"
COM_PP_UPDATE_PREFERENCES_BUTTON="Update Preferences"
COM_PP_NA="N/A"

There is also the "Account" string I can not find.
See attached screenshot, the heading text Account in the dropdown