Hi,
I am not sure about all issues but could suggest for one "Error when processing node ’0000000093′ (ParForEach index 000000)"
ParForEach Index 000000 comes when there is binding issue in some step. As per the error , check all bindings of step 93 of workflow. Some of the container element would be missing from Workflow template or Standard task or Rule for which binding is defined in the workflow. For correcting it you have 2 solutions :
1) Delete binding for which error is appearing. Ideally it should not be done unless you are sure that binding is relevant especially when you have copied standard template
2) Declare the missing container element. It is not necessary that element is missing from Workflow container , it could be missing in Task container or Rule container.
Check workflow thoroughly once you correct binding issue. I hope other issues will also get correct.
Thanks!