2007 Skoda Octavia dashboard warning lights

Engine Mechanical problem
2007 Skoda Octavia Front Wheel Drive Manual 80000 miles

i have a 56 reg octavia vrs I was goin down the motorway just below 80mph and the car started to slow down and rapidly lose power then 3 warning lights came on, the yellow engine block light, the catalist exhaust tube(someone told me its just getting clogged up with exhaust dust/soot)and what people used to call the coil/glowpug light(its like a coiled spring or a piglets tail lol) please help all I can see is pound signs in front of my eyes and the manager of my skoda dealer rubbing his hands lol