Spam 2.0 - php errors when attempting to configure input types

On 3 different sites running spam 2.0: If I click on administer-->input types-->configure (on any type) I get this error:

Fatal error: Call to undefined function: spam_publish_list() in /[serverpath]/modules/spam/spam.module on line 1681

In the logs, there are a series of php errors, as follows:

Location	/admin/filters/3
Message	Missing argument 2 for spam_filter() in /[serverpath]/modules/spam/spam.module on line 52.
Severity	error

Location	/admin/filters/3
Message	Missing argument 3 for spam_filter() in /[serverpath]/modules/spam/spam.module on line 52.

Location	/admin/filters/3
Message	Missing argument 4 for spam_filter() in /[serverpath]/modules/spam/spam.module on line 52.

Location	/admin/filters/3
Message	asort() expects parameter 1 to be array, null given in /[serverpath]/modules/spam/spam.module on line 744.
Severity	error

Location	/admin/filters/3
Message	array_keys(): The first argument should be an array in /[serverpath]/modules/spam/spam.module on line 749.
Severity	error

Location	/admin/filters/3
Message	array_pop(): The argument should be an array in /[serverpath]/modules/spam/spam.module on line 753.
Severity	error

Location	/admin/filters/3
Message	Division by zero in /[serverpath]/modules/spam/spam.module on line 764.
Severity	error

Also, I'm not sure if this is related, but I've been unable to get new javacripts to function. (Old scripts seem to be continuing to work.) This could be completely unrelated, but I thought I'd mention it as this behavior started appearing around the same time.