Non-blob field type is changed to blob field type error during SugarCRM Pro 7.7.2.0 to 7.7.2.2

Good Day!

I'd like to ask the community if anyone knows how to solve the problem below. I cannot proceed with my current version upgrade due to this error.

My Vardefs:

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$dictionary['Contact']['fields']['lead_source'] = array(
'required' => false,
'name' => 'lead_source',
'vname' => 'LBL_LEAD_SOURCE',
'type' => 'multienum',
'massupdate' => true,
'no_default' => false,
'comments' => '',
'help' => '',
'importable' => 'true',
'duplicate_merge' => 'enabled',
'duplicate_merge_dom_value' => '1',
'audited' => false,
'reportable' => true,
'unified_search' => false,
'merge_filter' => 'disabled',
'calculated' => false,
'size' => '20',
'options' => 'contact_lead_source',
'studio' => 'visible',
'dependency' => '',
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

I`ve been looking for the solution to this, but I couldn`t find any on the internet or even here in our community.