Checkout blocked when Keap is active but not "authorized" or set up

[kimcoleman]

Describe the bug
I activated Keap while running some tests and didn't re-authorize it/fully set it up.

Checkout is blocked with the following errors:

Warning: Undefined array key "count" in /Users/kimberlycoleman/Local Sites/pmprokimfork/app/public/wp-content/plugins/pmpro-keap/pmpro-keap.php on line 54
( ! ) Warning: Undefined array key "id" in /Users/kimberlycoleman/Local Sites/pmprokimfork/app/public/wp-content/plugins/pmpro-keap/pmpro-keap.php on line 56
( ! ) Warning: Undefined array key "tags" in /Users/kimberlycoleman/Local Sites/pmprokimfork/app/public/wp-content/plugins/pmpro-keap/classes/class-pmpro-keap-api-wrapper.php on line 280

There is a code comment here that was never actioned.

"// We probably need to make sure we can connect and not fatal error."

Expected behavior
Membership Checkout should work and skip / bypass any Keap processes if the site is not authorized.

Isolating the problem (mark completed items with an [x]):

• I have deactivated other plugins and confirmed this bug occurs when only Paid Memberships Pro plugin is active.
• This bug happens with a default WordPress theme active, or Memberlite.
• I can reproduce this bug consistently using the steps above.