Blocks

After speaking to Penny, she said " I would try and drop any
tables that look like mdl_block_eportfolio_* and delete the record from
mdl_block with name = 'eportfolio' and then try again.

Sometimes moodle's installer gets confused if you issue two requests to
the same page at the same time.  This can be triggered if you click on a
'continue' link that has already started auto redirecting."