***ERROR*** THICKNESS NOT PROVIDED FOR ELEMENT

Greetings everyone,

Iam new to STAAD, I got this error that "thickness wasn't provided for some elements(125,126.....)" but I have my maximum beam elements as 120 only, Can someone please help me with my mistake

1. STAAD SPACE
INPUT FILE: Structure2_plus_concretedilemma.STD
2. START JOB INFORMATION
3. ENGINEER DATE 04-NOV-20
4. END JOB INFORMATION
5. INPUT WIDTH 79
6. UNIT METER KN
7. JOINT COORDINATES
8. 1 0 0 0; 2 4.20001 0 0; 3 8.10002 0 0; 4 11.1 0 0; 5 0 3.00001 0
9. 6 4.20001 3.00001 0; 7 8.10002 3.00001 0; 8 11.1 3.00001 0; 9 0 6.00001 0
10. 10 4.20001 6.00001 0; 11 8.10002 6.00001 0; 12 11.1 6.00001 0; 13 0 9.00002 0
11. 14 4.20001 9.00002 0; 15 8.10002 9.00002 0; 16 11.1 9.00002 0; 17 0 0 3.60001
12. 18 4.20001 0 3.60001; 19 8.10002 0 3.60001; 20 11.1 0 3.60001
13. 21 0 3.00001 3.60001; 22 4.20001 3.00001 3.60001; 23 8.10002 3.00001 3.60001
14. 24 11.1 3.00001 3.60001; 25 0 6.00001 3.60001; 26 4.20001 6.00001 3.60001
15. 27 8.10002 6.00001 3.60001; 28 11.1 6.00001 3.60001; 29 0 9.00002 3.60001
16. 30 4.20001 9.00002 3.60001; 31 8.10002 9.00002 3.60001
17. 32 11.1 9.00002 3.60001; 33 0 0 7.80002; 34 4.20001 0 7.80002
18. 35 8.10002 0 7.80002; 36 11.1 0 7.80002; 37 0 3.00001 7.80002
19. 38 4.20001 3.00001 7.80002; 39 8.10002 3.00001 7.80002
20. 40 11.1 3.00001 7.80002; 41 0 6.00001 7.80002; 42 4.20001 6.00001 7.80002
21. 43 8.10002 6.00001 7.80002; 44 11.1 6.00001 7.80002; 45 0 9.00002 7.80002
22. 46 4.20001 9.00002 7.80002; 47 8.10002 9.00002 7.80002
23. 48 11.1 9.00002 7.80002; 49 0 0 10.9728; 50 4.20001 0 10.9728
24. 51 8.10002 0 10.9728; 52 11.1 0 10.9728; 53 0 3.00001 10.9728
25. 54 4.20001 3.00001 10.9728; 55 8.10002 3.00001 10.9728
26. 56 11.1 3.00001 10.9728; 57 0 6.00001 10.9728; 58 4.20001 6.00001 10.9728
27. 59 8.10002 6.00001 10.9728; 60 11.1 6.00001 10.9728; 61 0 9.00002 10.9728
28. 62 4.20001 9.00002 10.9728; 63 8.10002 9.00002 10.9728
29. 64 11.1 9.00002 10.9728; 65 0 0 0
30. MEMBER INCIDENCES
31. 1 5 6; 2 6 7; 3 7 8; 4 9 10; 5 10 11; 6 11 12; 7 13 14; 8 14 15; 9 15 16
32. 10 1 5; 11 2 6; 12 3 7; 13 4 8; 14 5 9; 15 6 10; 16 7 11; 17 8 12; 18 9 13
33. 19 10 14; 20 11 15; 21 12 16; 22 21 22; 23 22 23; 24 23 24; 25 25 26; 26 26 27
34. 27 27 28; 28 29 30; 29 30 31; 30 31 32; 31 17 21; 32 18 22; 33 19 23; 34 20 24
35. 35 21 25; 36 22 26; 37 23 27; 38 24 28; 39 25 29; 40 26 30; 41 27 31; 42 28 32
36. 43 37 38; 44 38 39; 45 39 40; 46 41 42; 47 42 43; 48 43 44; 49 45 46; 50 46 47
37. 51 47 48; 52 33 37; 53 34 38; 54 35 39; 55 36 40; 56 37 41; 57 38 42; 58 39 43
38. 59 40 44; 60 41 45; 61 42 46; 62 43 47; 63 44 48; 64 53 54; 65 54 55; 66 55 56
STAAD SPACE -- PAGE NO. 2

39. 67 57 58; 68 58 59; 69 59 60; 70 61 62; 71 62 63; 72 63 64; 73 49 53; 74 50 54
40. 75 51 55; 76 52 56; 77 53 57; 78 54 58; 79 55 59; 80 56 60; 81 57 61; 82 58 62
41. 83 59 63; 84 60 64; 85 5 21; 86 6 22; 87 7 23; 88 8 24; 89 9 25; 90 10 26
42. 91 11 27; 92 12 28; 93 13 29; 94 14 30; 95 15 31; 96 16 32; 97 21 37; 98 22 38
43. 99 23 39; 100 24 40; 101 25 41; 102 26 42; 103 27 43; 104 28 44; 105 29 45
44. 106 30 46; 107 31 47; 108 32 48; 109 37 53; 110 38 54; 111 39 55; 112 40 56
45. 113 41 57; 114 42 58; 115 43 59; 116 44 60; 117 45 61; 118 46 62; 119 47 63
46. 120 48 64
47. ELEMENT INCIDENCES SHELL
48. 121 16 13 1 4; 122 5 8 56 53; 123 5 53 56 8; 124 5 53 56 8; 125 8 56 53 5
49. 126 5 8 56 53; 127 5 8 56 53; 128 9 57 60 12; 129 13 61 64 16
50. ELEMENT PROPERTY
51. 123 128 129 THICKNESS 0.135
52. DEFINE MATERIAL START
53. ISOTROPIC CONCRETE
54. E 2.17184E+007
55. POISSON 0.17
56. DENSITY 23.6158
57. ALPHA 5E-006
58. DAMP 0.05
59. TYPE CONCRETE
60. G 9.28137E+006
61. TYPE CONCRETE
62. TYPE CONCRETE
63. STRENGTH FCU 27578.9
64. STRENGTH FCU 27578.9
65. STRENGTH FCU 27578.9
66. END DEFINE MATERIAL
67. MEMBER PROPERTY
68. 1 TO 9 22 TO 30 43 TO 51 64 TO 72 85 TO 120 PRIS YD 0.28 ZD 0.25
69. 10 TO 21 31 TO 42 52 TO 63 73 TO 84 PRIS YD 0.45 ZD 0.55
70. CONSTANTS
71. MATERIAL CONCRETE ALL
72. SUPPORTS
73. 1 TO 4 17 TO 20 33 TO 36 49 TO 52 FIXED
74. LOAD 1 LOADTYPE DEAD TITLE LOAD CASE DL
**WARNING- ELEMENTS 126 & 127 ARE BETWEEN THE SAME JOINTS.
**WARNING- ELEMENTS 126 & 125 ARE BETWEEN THE SAME JOINTS.
**WARNING- ELEMENTS 126 & 122 ARE BETWEEN THE SAME JOINTS.
**WARNING- ELEMENTS 127 & 125 ARE BETWEEN THE SAME JOINTS.
**WARNING- ELEMENTS 127 & 122 ARE BETWEEN THE SAME JOINTS.
**WARNING- ELEMENTS 125 & 124 ARE BETWEEN THE SAME JOINTS.
**WARNING- ELEMENTS 125 & 123 ARE BETWEEN THE SAME JOINTS.
**WARNING- ELEMENTS 125 & 122 ARE BETWEEN THE SAME JOINTS.
**WARNING- ELEMENTS 124 & 123 ARE BETWEEN THE SAME JOINTS.
**WARNING- JOINT NO. 65 NOT CONNECTED. OK, IF PART OF MASTER/SLAVE.
**WARNING- THIS STRUCTURE IS DISJOINTED. IGNORE IF
MASTER/SLAVE OR IF UNCONNECTED JOINTS.
75. SELFWEIGHT Y -1 LIST ALL
76. LOAD 2 LOADTYPE LIVE TITLE LOAD CASE LL
77. FLOOR LOAD
78. YRANGE 3 9 FLOAD -2 GY
STAAD SPACE -- PAGE NO. 3

**NOTE** about Floor/OneWay Loads/Weights.
Please note that depending on the shape of the floor you may
have to break up the FLOOR/ONEWAY LOAD into multiple commands.
For details please refer to Technical Reference Manual
Section 5.32.4 Note 6.

79. PERFORM ANALYSIS

***ERROR*** THICKNESS NOT PROVIDED FOR ELEMENT 121

***ERROR*** THICKNESS NOT PROVIDED FOR ELEMENT 122

***ERROR*** THICKNESS NOT PROVIDED FOR ELEMENT 124

***ERROR*** THICKNESS NOT PROVIDED FOR ELEMENT 125

***ERROR*** THICKNESS NOT PROVIDED FOR ELEMENT 126

***ERROR*** THICKNESS NOT PROVIDED FOR ELEMENT 127
ANALYSIS WILL NOT BE PERFORMED. DATA-CHECK MODE ENTERED.

Thank you!