Input data: adjacency matrix, tab-separated '1' and '0' characters in file "matrix.tsv"

matrix = as.matrix(read.table("matrix.tsv"))
my_graph3 = graph_from_adjacency_matrix(matrix)
plot.modules(my_graph3)

Result:

Error in intI(j, n = d[2], dn[[2]], give.dn = FALSE) :
  index larger than maximal 34

sessionInfo() output:

R version 3.2.2 (2015-08-14)
Platform: x86_64-redhat-linux-gnu (64-bit)
Running under: Fedora 21 (Twenty One)

locale:
 [1] LC_CTYPE=en_US.UTF-8      LC_NUMERIC=C              LC_TIME=en_GB.utf8       
 [4] LC_COLLATE=en_US.UTF-8    LC_MONETARY=en_GB.utf8    LC_MESSAGES=en_US.UTF-8  
 [7] LC_PAPER=en_GB.utf8       LC_NAME=C                 LC_ADDRESS=C             
[10] LC_TELEPHONE=C            LC_MEASUREMENT=en_GB.utf8 LC_IDENTIFICATION=C      

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] netbiov_1.4.0 igraph_1.0.1 

loaded via a namespace (and not attached):
 [1] colorspace_1.2-6 scales_0.3.0     Matrix_1.2-3     magrittr_1.5     plyr_1.8.3      
 [6] tools_3.2.2      gtable_0.1.2     Rcpp_0.12.3      ggplot2_2.0.0    grid_3.2.2      
[11] munsell_0.4.3    lattice_0.20-33