Ps_plot('v-dao','a_gacos',1,0,0,'ts') error

Hello everyone. When I execute ps_plot (‘v dao ‘,’ a_gacos’, 1,0,0, ‘ts’), the program reports an error
Interferogram (1) does not have a reference area
Subscription indices must either be real positive integers or logicals
Error in ps_plot (line 1963)
Maxph=phsort (round (length (phsort) *. 999));
ccc

Has anyone encountered a similar problem before? How should I solve it. Thank you everyone

Sir, have you solved this problem?

check parameter ‘lambda‘, if it is set to NaN, this error happens. You can retrieve lambda value from STAMPS.log file and set it back using setparm. Its value was probably lost from step 7.