Hello V,
Something is wrong with your I2c Scanner. Please use one of the Examples from the Arduino IDE. They will give you a map of I2c addresses. How you show 112 devices is impossible with the schematic you show. I hope this helps. Maybe I missed something. You say SCK and SCL which are the same (Serial Clock) It should be SCK and SDA but I would have to look at a OLED display to check these connections and What are the labels. If i remember maybe SCL may be SDA.
Are you using a 0.96, 1.2 or a 1.5" display?