Calculation failed

INPUT FOR ISOTROPIC DIELECTRICS
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EPS= 78.39
INPUT FOR CAVITY DEFINITION
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ATOM COORDINATES RADIUS EPS
1 -0.7990 0.1553 -1.7896 0.0000 78.3900
2 0.1167 -0.7604 -2.7054 1.3500 78.3900
**** ERROR **** PCM SPHERE(S) MUST HAVE A POSITIVE RADIUS
EXECUTION OF GAMESS TERMINATED -ABNORMALLY- AT Wed Nov 18 19:27:28 2020