A group that was hoping to open a new event space in downtown Bangor this week has been forced to alter its plans after the city inspected the space late last week and found that it wasn’t qualified to hold large crowds because it lacked such features as fire sprinklers, emergency lighting and accessibility for people with disabilities. On Thursday of this week, the group had been planning to hold a grand opening of the space, called Top of the Nine, on the fourth floor of 9 Central Street, which boasts panoramic views of downtown Bangor.