Gessica Veras had run Kingston Cafe and Bar for just over a year and a-half.
She has claimed she was evicted by the landlord during lockdown, after the Covid-19 restrictions left her unable to make rent.
She said the locks were changed on the property overnight, leaving her unable to access her stock.
Owner Paul Miller has dismissed accusations that he evicted Ms Veras and said he had emails that proved she "relinquished it [the lease] willingly".
Ms Veras said the emails related to her informing him that she was unable to pay the rent and she "wanted to keep going till next year" with the business, but he had refused to negotiate reduced rent.
Mr Miller said the locks had been changed for insurance reasons after his lawyers understood that the lease was relinquished, bringing to a conclusion months of rent arrears going back to October.
"Those rent arrears were shown leniency and compassion and allowed to continue for five months."
He said that it was a "shame" the tenant was pinning "business failure" on the Covid- 19 pandemic.
He said although the tenant attempted to repay late rent, it was never fully repaid and "arrears just continued to grow rapidly".
Ms Veras said all owed rent had been paid until February, when the number of tourists fell because of the virus in China, and she was only able to afford a little over half the rent.
She then informed Mr Miller that lockdown would mean she had no income and therefore could not pay any rent.
Both sides have instructed lawyers.
It has left six members of staff, who have so far received the government wage subsidy, unsure of their futures.
Police have confirmed they are making inquiries following a report of a "break in" at the property on Tuesday, April 7.
