Fatal error: Class 'JFormField'

Looking to get help with an error that just started coming up when trying to go to the OS Services Booking Dashboard (or any areas within the component).

Joomla version 3.2.1

Fatal error: Class 'JFormField' not found in /home/content/77/12142277/html/administrator/components/com_osservicesbooking/elements/osmcurrency.php on line 14

Hi,
Your Joomla version is too old, you should upgrade Joomla to 3.6.5 or higher (3.9.x) to make sure OS Services Booking to work properly.
Thanks
Dam

I'll see what I can do. Thank you.

Ok Gene

I'm not having any luck with upgrading. From the Extension manager or the component Joomla update. When I click on these links it goes goes to a blank page. I can navigate other areas of the administrator and it doesn't error out it just doesn't do anything.

Any suggestions on a manual upgrade?

Thanks for your help.

I turned on error reporting to 'maximum' in the configuration.php. So now I see that when I try to go to install after clicking the install button the blank page now shows:
Fatal error: Class 'JAdapterInstance' not found in /home/content/77/12142277/html/libraries/cms/installer/adapter/file.php on line 23

Hi,
You need to find the way to upgrade Joomla to 3.6.5 manually before you can upgrade Joomla into higher versions. Your Joomla version is too old and it contains a lot of issues and security problems.
Thanks
Dam

SOLVED: I was able to resolve both errors by copying over the core files from a new downloaded package of 3.2.1. Once these files were moved to the hosting server it started working properly without error. I can now upgrade as needed through the Joomla platform.

Thank you,

-Gene

Ok Gene