Repair pressed-in longitudinal beams/body

Hello all, the days at the TüV and my Mazda MX-5 (NB-FL, year 2001, 146 hp) unfortunately failed due to the following problem: My right longitudinal support is slightly pressed in at one point (just 50cm behind the front axle). The car is slightly lowered and suppose that I got stuck somewhere (e.g. at a gas station “hubble” which is so…). At or at the following link you will find an image:http://www.abload.de/image.php?img=img_0056zijh0.jpg On the left side you will find: it is a similar place, the TüV has also criticized… But is much less pressed in like the right side (in the picture), … you actually only look at the exact one. Only would my question be if you can repair this and what it costs or can cost? Thanks in advance and best regards AceArcadia