RDKit error with explicit valence for atom and Can't kekulize mol #6

[andresilvapimentel]

How can I solve this error? Any suggestion?

#Drawing ROMol structure
PandasTools.AddMoleculeColumnToFrame(dfoleos, smilesCol="smiles")

#Drawing ROMol structure
PandasTools.AddMoleculeColumnToFrame(dfoleos, smilesCol="smiles")
RDKit ERROR: [19:21:28] Explicit valence for atom # 0 N, 5, is greater than permitted
RDKit ERROR: [19:21:28] Can't kekulize mol. Unkekulized atoms: 9
RDKit ERROR:
RDKit ERROR: [19:21:28] Explicit valence for atom # 10 N, 4, is greater than permitted
RDKit ERROR: [19:21:28] Explicit valence for atom # 10 N, 4, is greater than permitted
RDKit ERROR: [19:21:28] Can't kekulize mol. Unkekulized atoms: 4
RDKit ERROR:
RDKit ERROR: [19:21:28] Can't kekulize mol. Unkekulized atoms: 4
RDKit ERROR:

The chemical structures are:
[NH4]Pt(Cl)Cl

c1ccc(cc1)n2c(=O)c(c(=O)n2c3ccccc3)CCS(=O)c4ccccc4

Cc1cc2c(cc1C)N3C=N2[Co+]456(N7=C8C@HCCC(=O)N)O

Cc1cc2c(cc1C)N3C=N2[Co]456(N7=C8C@HCCC(=O)N)C#N

CCCCc1c(=O)n(n(c1=O)c2ccc(cc2)O)c3ccccc3

CCCCc1c(=O)n(n(c1=O)c2ccccc2)c3ccccc3

Could you help me, please?