Errors: Parse error / An illegal choice was made

Got a log file full of these array errors. The deploy is failing for reasons "An illegal choice was made" (perhaps resolved) and now "Parse error".

I am deploying by checking the item in the core Content Management list, then selecting Deploy. I have tried it with a deployment plan and without one. (Honestly, I don't get how the deployment plan works. But, when I select an item as described above, it isn't being sent to the plan.)

How the heck to troubleshoot these?

Latest:

node event: Test Event Push is Here Error Parse error. Not well formed

Log file entry (also attached):

Type	plan items<br />
Date	Friday, 26 August 2011 - 12:11am<br />
User	superadmin<br />
Location	http://testing.mysite.com/admin/build/deploy/deploy_check_batch<br />
Referrer	http://testing.mysite.com/node_operations/deploy_now/46<br />
Message	Array ( [0] => Array ( [iid] => 110 [pid] => 2 [module] => node [description] => event: Test Event Push is Here [weight] => 0 [data] => 46 [uid] => 1 [ts] => 1314335516 [weight_group] => 7 ) )<br />
Severity	notice

Also, can you allow more of the error message on deploy log page. (Couldn't see where any length is set in code to change.)

D6.22