View Compilation Error

0_0_5076613_18296.c: In function `insert':
0_0_5076613_18296.c:30: error: `node' undeclared (first use in this function)
0_0_5076613_18296.c:30: error: (Each undeclared identifier is reported only once
0_0_5076613_18296.c:30: error: for each function it appears in.)
0_0_5076613_18296.c:30: error: syntax error before ')' token
0_0_5076613_18296.c: In function `main':
0_0_5076613_18296.c:101: error: `node' undeclared (first use in this function)