Calendar Base Error

Message: Missing or wrong parameter. The event you are looking for could not be found.

Note: Please verify your URL parameter: tx_cal_controller[uid]

MoDiMiDoFrSaSo
01 02 03 04 05 0607
08 09 10 11 12 1314
15 16 17 18 19 2021
22 23 242526 27 28
29 30 3101 02 03 04