Hey there,

I am really sorry for the delay of this reply as it is a weekend for us here.

The subscription module frontend translation is under backend language file JoomlaFolder/administrator/language/en-GB/en-GB.com_payplans.ini

MOD_PAYPLANS_SUBSCRIPTION_EXPIRATION_DATE_ACTIVE="Subscription active till"

MOD_PAYPLANS_SUBSCRIPTION_EXPIRATION_DATE_HOLD="Subscription on hold"

MOD_PAYPLANS_SUBSCRIPTION_EXPIRATION_DATE_EXPIRED="Subscription has expired"

MOD_PAYPLANS_SUBSCRIPTION_EXPIRATION_DATE_NONE="None subscription"

MOD_PAYPLANS_SUBSCRIPTION_EXPIRATION_DATE_LIFETIME="Subscription never expire (Lifetime)"

Hello Arlex,

There is something wrong with the PP language files.
In every language these fields are different.

Examples:
en-GB: MOD_PAYPLANS_SUBSCRIPTION_EXPIRATION_DATE_ACTIVE
de-DE: MOD_PAYPLANS_SUBSCRIPTION_EXPIRATION_DATE_ACTIVES

en-GB: MOD_PAYPLANS_SUBSCRIPTION_EXPIRATION_DATE_EXPIRED
de-DE: MOD_PAYPLANS_SUBSCRIPTION_EXPIRATION_DATE_ABGELAUFEN
fr-FR: MOD_PAYPLANS_SUBSCRIPTION_EXPIRATION_DATE_EXPIRé

That strange, because I did tried to download this German and French language through my locally backend, it seems like there do not have any language constants for these :

MOD_PAYPLANS_SUBSCRIPTION_EXPIRATION_DATE_ACTIVES

MOD_PAYPLANS_SUBSCRIPTION_EXPIRATION_DATE_ABGELAUFEN

MOD_PAYPLANS_SUBSCRIPTION_EXPIRATION_DATE_EXPIRé

Perhaps you can try purge the language from backend and discover again, then download it and see if you still getting those weird language constant or not.

But remember do the backup first if you have manually translated those some of the word under the original language file.