Error in ligand-receptor interaction ploting sq.pl.ligrec()

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Hi all,

I was trying to plot ligated-receptor interaction of a Visium slide after defining clusters.
using the follwing

res = sq.gr.ligrec(
    anadata,
    n_perms=1000,
    cluster_key="region_clusters",
    copy=True,
    use_raw=False,
    transmitter_params={"categories": "ligand"},
    receiver_params={"categories": "receptor"},)


res["means"].head()
cluster_1             0                      ...         9                    
cluster_2             0         1        10  ...         7         8         9
source target                                ...                              
EPOR   TRPC3   0.000000  0.000000  0.009627  ...  0.000000  0.000000  0.004717
       JAK2    0.013688  0.015658  0.021532  ...  0.010776  0.022767  0.009434
FYN    JAK2    0.046699  0.048669  0.054543  ...  0.032002  0.043993  0.030660
CCL2   JAK2    0.041063  0.043033  0.048907  ...  0.036719  0.048710  0.035377
KIT    JAK2    0.000000  0.000000  0.000000  ...  0.010776  0.022767  0.009434
[5 rows x 144 columns]
res["metadata"].head()
              aspect_intercell_source  ... uniprot_intercell_target
source target                          ...                         
EPOR   TRPC3               functional  ...                   Q13507
       JAK2                functional  ...                   O60674
FYN    JAK2                functional  ...                   O60674
CCL2   JAK2                functional  ...                   O60674
KIT    JAK2                functional  ...                   O60674
[5 rows x 41 columns]
res["pvalues"].head()
cluster_1          0                       ...      9                     
cluster_2          0      1     10     11  ...      6      7      8      9
source target                              ...                            
EPOR   TRPC3     NaN    NaN    NaN    NaN  ...    NaN    NaN    NaN    NaN
       JAK2    0.988  0.958  0.564  0.816  ...    NaN    NaN    NaN    NaN
FYN    JAK2    0.999  0.998  0.950  0.981  ...  0.943  1.000  0.977  0.998
CCL2   JAK2    0.812  0.733  0.365  0.644  ...  0.251  0.828  0.417  0.841
KIT    JAK2      NaN    NaN    NaN    NaN  ...    NaN    NaN    NaN    NaN
[5 rows x 144 columns]

it seems that the calculation works but the issue if with plotting after running
sq.pl.ligrec(res, alpha=0.005)
I get this error

TypeError: unsupported operand type(s) for +: 'int' and 'dict'

Thank you very much,
Best,