The phrase "to suspend the chairman" means to temporarily remove or restrict the authority and position of the person in charge (chairman) due to some wrongdoing or misconduct. Full definition
In the same vein, they are praying the court to restrain Mr Blay and the 29 other respondents, respectively, from convening and attending meetings «without the purportedly suspended chairman of the party (Chairman Afoko) being the convenor of the meetings.» (ghanapoliticsonline.com)
The ruling New Patriotic Party (NPP) has suspended its chairman for the Kumawu Constituency in the Ashanti Region over some remarks he made against the President Nana Addo Dankwa Akufo - Addo. (ghanapoliticsonline.com)
The three are seeking an interlocutory injunction «to restrain them from holding out [Freddie Blay] as acting chairman of the party and convening and attending meetings without the purportedly suspended chairman of the party (Chairman Afoko) being the convenor of the meetings and to restrain the defendants from taking decisions in any meeting not convened by Chairman Afoko, until this dispute is finally determined.» (myjoyonline.com)