Wisconsin Statutes Subsection 941.237(3)(cx) A licensee, as defined in s. 175.60 (1) (d) [that's you SorAssey] ... is not consuming alcohol on the premises excepts a licensee from (2) Whoever intentionally goes armed with a handgun on any premises for which a Class “B” or “Class B” license or permit has been issued under ch. 125 is guilty of a Class A misdemeanor.
Licensed under s. 175.60(1)(d) you can carry open or concealed in a Wisconsin tavern as long as you are not consuming alcohol. Under Subsection 941.237(3)(g) The possession or use of a handgun doesn't say open or concealed.
I hope that you paid a bunch for your training, but you need to get your money back. If it was free then it was worth every penny.