Some PF cadres and senior party officials have been embroiled in wrangles over the presidential endorsement which at the weekend sparked violence.
On Saturday, some party youths fought running battles at Northmead Secondary School in
Lusaka leaving property damaged and several people injured.
The group that was for the endorsement presented a petition to Lusaka Deputy Mayor Mulenga Sata and asked him to deliver it to the Head of State on their behalf.
Ms Wina described the infighting as indiscipline, saying the party was capable of solving problems internally.
She said the party would soon convene a central committee meeting to find a lasting solution to the wrangles.
She called for the immediate stop of the wrangles, saying they were denting the image of party.
“If there is any difference in the party, we are able to amicably resolve it within the party circles because it is a family matter,” Ms Wina said.
Meanwhile, some PF members on the Copperbelt have condemned the clash by rival PF factions in Lusaka last weekend.
Former PF youth secretary, Chanda Kabwe advised youths against being used as tools of violence by some selfish politicians.
Michael Chewe, a Kitwe-based PF member said the endorsement of President Michael Sata for the 2016 elections should be supported.
Mr Chewe said Mr Sata was a hard worker and a leader with exceptional abilities.