James,

Sorry, I must have missed your other post above. I think what is happening here is that the table uses too many large VARCHARs. This has been corrected in previous versions but it looks like since you were one of the first purchasers of this module some of the legacy structure is still there. I have made this SQL query that should bring the database structure up to date. Can you run this in phpMyAdmin or something similar?

After running this, go to update.php and try to run the 4.13 update again, and let me know if it works. Sorry about the hassle...

ALTER TABLE paypal_subscriptions MODIFY description TEXT;
ALTER TABLE paypal_subscriptions MODIFY signup_mail_body TEXT;
ALTER TABLE paypal_subscriptions MODIFY eot_mail_body TEXT;
ALTER TABLE paypal_subscriptions MODIFY cancel_mail_body TEXT;
ALTER TABLE paypal_subscriptions MODIFY modify_mail_body TEXT;
ALTER TABLE paypal_subscriptions MODIFY allow_roles TEXT;

ALTER TABLE paypal_subscriptions MODIFY signup_mail_subject VARCHAR(255);
ALTER TABLE paypal_subscriptions MODIFY eot_mail_subject VARCHAR(255);
ALTER TABLE paypal_subscriptions MODIFY cancel_mail_subject VARCHAR(255);
ALTER TABLE paypal_subscriptions MODIFY modify_mail_subject VARCHAR(255);
ALTER TABLE paypal_subscriptions MODIFY item_name VARCHAR(255);
ALTER TABLE paypal_subscriptions MODIFY business VARCHAR(255);

Sincerely,

Leighton Whiting