Hello, -When defining the beams joining the panel, it would be appropriate to define it up to the end point of the panel. We have defined the beams between the P16-P5 and P16-P6 panels on the 1st and 2nd floors for you. -You can correct the missing reinforcement error in the raft basis by increasing the raft reinforcement diameters from the Reinforced Concrete/Reinforcement selection menu. In addition, for a more economical solution, you can arrange the raft reinforcement axles as in the example, and mark the superstructure interactive solution and winkler spring method from the analysis settings. -It would be appropriate to correct the errors given when the geometry is checked. - It would be more appropriate to provide rib beam continuity in rib slabs in the same direction. (For example, 2nd floor D4-D11 slabs are discontinuous.) -You can define the elements you model as panels as shells. -After the analysis, there are Column-Beam Joining Safety errors in some columns, it would be appropriate to correct them.