[求助]关于PSPICE的问题

在PSPICE仿真中有一个错误憋了我好久，一直没有解决，着急啊，不知哪位高手给指点一下，谢谢啦！
对一个电路仿真时，报错：
Simulation running...
** Profile: "SCHEMATIC1-1" [ E:\pspicefz\hhh-SCHEMATIC1-1.sim ]
Reading and checking circuit
EVALUATION VERSION analog Node Limit (64 Nodes) Exceeded!
ERROR -- EVALUATION VERSION analog Node Limit (64 Nodes) Exceeded!
Run aborted
Circuit has errors ... run aborted
See output file for details
Simulation aborted