No result shown？too large model or wrong model

[Lmywl]

Hi ！
I am a beginner, using linear programming algorithm to solve a scheduling problem, but when I built the model and called solve function, I could not get the result, and no error information was displayed. I would like to ask whether this situation is caused by the timeout caused by too large model, or whether I established the wrong model,the following are some run result shown:

Cbc0038I Pass 1: (37.00 seconds) suminf. 81.00000 (244) obj. 1962 iterations 7908
Cbc0038I Pass 2: (37.21 seconds) suminf. 91.00000 (276) obj. 1968 iterations 376
Cbc0038I Pass 3: (37.40 seconds) suminf. 82.50000 (240) obj. 1982 iterations 399
Cbc0038I Pass 4: (37.48 seconds) suminf. 83.00000 (242) obj. 1982 iterations 71
Cbc0038I Pass 5: (37.69 seconds) suminf. 65.50000 (188) obj. 1986 iterations 400
Cbc0038I Pass 6: (37.77 seconds) suminf. 69.00000 (204) obj. 1986 iterations 75
Cbc0038I Pass 7: (38.07 seconds) suminf. 66.00000 (196) obj. 1990 iterations 362

Cbc0010I After 0 nodes, 1 on tree, 1e+50 best solution, best possible 404 (318.94 seconds)

I have worked on it for a week but I can't find out the reason........