dot-lot code issue

pdf(file=”celltype_markergene_dotplot.pdf”,width=20)
DotPlot(data, features =c(“DCN”, “COL1A2”, “CFD”,
“KLRB1”, “CD7”, “GZMK”,
“MT1G”, “MT1H”, “MT1F”,
“HSPA1A”, “HSPA6”, “DNAJB1”,
“CCL5”, “CD3E”, “CXCR4”,
“IFI27”, “TM4SF1”, “CLDN5”,
“HLA-DRA”, “HLA-DPB1”, “HLA-DQB1”,
“S100A9”, “S100A8”, “LST1”,
“GNLY”, “GZMB”, “FGFBP2”,
“S100A2”, “SFN”, “KRT14”,
“CCL4”, “CCL3”, “NKG7”,
“ALDOB”, “PCK1”, “MT1G”,
“S100A8”, “S100A9”, “FCGR3B”,
“PRSS1”, “CLPS”, “PNLIP”,
“SFTPC”, “CXCL2”, “SFTPA1”,
“HSPA6”, “HSPA1A”, “IFNG”,
“TAGLN”, “ACTA2”, “MYL9”,
“MT1G”, “MT1H”, “MT1F”,
“CD79A”, “IGKC”, “IGHM”,
“KRT1”, “DMKN”, “LGALS7B”,
“LGALS1”, “COL6A2”, “ZFP36L1”,
“PRSS1”, “CLPS”, “CPA1”,
“MT2A”, “MT1X”, “SLC30A1”,
“TRAC”, “CD52”, “RPL27A”,
“IGFBP7”, “SPARCL1”, “A2M”,
“DCT”, “TYRP1”, “MLANA”))+ theme(axis.text.x = element_text(angle = 90))
dev.off()

I have no idea where my code is wrong. Please help me out.

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