Short answers, pulled from the story.
The Communist Party of Workers and Peasants was founded in 2001 following a factional split from the Communist Party of Ukraine. This new group emerged as a distinct political entity within the Ukrainian landscape.
During the 2002 Ukrainian parliamentary election, the party secured only 0.41% of the popular vote. No seats were won by the group in that national contest.
Leonid Hrach became the head of the party in February 2011 while serving as a member of the Ukrainian parliament. He claimed evidence of corruption within the leadership of the original Communist Party of Ukraine.
Ukraine enacted decommunization laws in May 2015 that legally stripped the party of its right to participate in elections on the 24th of July 2015. The Ministry of Justice enforced these rules against three communist parties including this one.
The District Administrative Court in Kyiv officially dissolved the party on the 30th of September 2015. A report by Ukrinform confirmed the termination on the 1st of October 2015.